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About Ryosuke Kawamura


Name: Ryosuke Kaw amura
Position: Representative of GreenEchoes Studio
Date of birth: June 10, 1987 ( 38age)
Height: 169cm
Twitter: @hottyhottea
LinkedIn: Ryosuke Kawamura
Contact: info@greenechoes-studio.com
Corporate website: https://company.greenechoes-studio.com
I represent Green Echoes Studio, a website management business, and provide services around websites, including supervision, writing, fairness, site design, and management support for communication-related articles.
He also became a keyboard collector because he collects keyboards as work tools.
After graduating from college in 2012, he worked for a company before starting his own business and launching Green Echoes Studio.
I started out as a communications web writer and am now involved in a variety of activities including web media support, keyboard reviewer, product supervision for keyboard brands, and event coverage, in addition to managing my own media.
In recent years, in particular, the business has focused on keyboard-related work.
List of Authored Articles
- GreenKeys
- AiR-WiFi Magazine (outsourced operation)
- HHKB Life (Contributed)
Past Writings
- GreenWaves for Smarphone
- GreenWaves for WiFi
- GREENTIMES.
- WiFi Pman (through ~2023)
- MasterNet (through ~2023)
Areas of expertise
- Information on International Keyboards
- Keyboard Review
- Create your own keyboard
- Reviews on gadgets in general
- Web Writing
- Editorial supervision
- article fairness
- General site management
Past Initiatives
- Mobile Wi-Fi Router (Pocket WiFi /WiMAX /Cloud SIM) General Service Comparison
- Comparison of Fixed Line Services
- Compare Home Router Services
- Comparison of smartphone price plans of MNO and MVNO companies
- Knowledge of bandwidth used and other telecommunications-related issues
interests
- Boots ( Danner Lite )/Sneakers (Reebok Pump Fury) Collector
- Gadgets (smartphones/smartwatches/computers)
- wristwatch
- keyboard
- home-built keyboard
- Music in general (I like RedHotChiliPeppers/the band apart)
- Electric Bass/Electric Guitar
Achievements and Activity Highlights
With the operation of ” GreenKeys ” as its core, the company is advancing Japanese keyboard culture through the four axes of media, products, stores, and community.
- Founding of GreenKeys and personally initiated launch of independent media operation 2022. Writes and edits reviews/news/event reports himself, ensuring editorial independence through performance-based advertising only. Contributing to the revitalization of the domestic scene by providing a reliable source of information that is accessible to beginners and experts alike.
- Quickly publish new product reviews (e.g., Keychron Q11, Lofree Flow Lite, Cornx LP) to support purchasing decisions
- Visualize market trends with SNS analysis reports (e.g., X-post summary of Cornix LP pre-order sales)
- Promote self-made keyboards and development projectsPromote plans to lower the hurdles of soldering/firmware settings/keymap adjustments, etc. In 2025, announce the 36-key split ” Gravity 36 ” and ” Gravity 45″ in a press release ( PR TIMES ) and widely promote the appeal of compact arrays with less than 60% of The appeal of the “Gravity45” will be widely promoted.
- He is actively involved in coverage of keyboard-related events. He has covered events such as Tenkaichi Keyboard Waiwai Kai, Keyboard Market Tokyo, and TOKYO KEYBOARD EXPO.
- Product development support: KAP series Japanese layout support, Lofree Flow Lite JIS layout supervision, etc.
- Operation of Greenkeys Shop and improvement of accessibilityOpened own store “Greenkeys Shop” to provide niche parts (e.g. Tadpole cables, etc.) that are hard to obtain in Japan. Promoting the reduction of user burden & visualization of economic sphere by offering coupons through partnerships with keyboard brands and distributors not only overseas but also in Japan.
- Proprietary tools provided: KeebTax, Keyboard Database Search, VIA Any Generator
- SNS/Community Dissemination and Expanding Influence through X ( @Hottyhottea ) through proselytizing, surveys, and real-time analysis, helping to understand user demand and stimulate discussion Expanding Keyreative fan base and gaining Gravity36 exposure.
- E.g., Cornix LP First day of booking post analysis (quantified by Grok, etc.), survey on the need for a right 1 column special key, etc.
- We launched the JIS Layout Alliance, an initiative to redefine the bottom row of Japanese keyboards. We are working to promote the culture of interchangeable keycaps in Japan, as in other countries, and to revitalize the Japanese keyboard market.
Summary (contribution by role)
| Achievement Categories | concrete example | affect |
|---|---|---|
| Media Management | GreenKeys Establishment and Review / News Management | Democratization of information access and visibility of market trends |
| Event coverage | Covered and reported on events such as Tenkaichi Keyboard Waiwai Kai, Keyboard Market Tokyo, and TOKYO KEYBOARD EXPO. | Awareness of keyboard culture among the general public |
| Product Development Support | Gravity36 press release, Keyreative collaboration, KAP series Japanese sequence support, Lofree Flow Lite JIS sequence supervision | Spreading self-made culture and strengthening cooperation with overseas designers |
| Store Management | Greenkeys Shop | Improved parts availability, lower user costs, economic zone development |
| Proprietary tools provided | KeebTax/VIA Any Generator/Keyboard Database | Promoting the use and enjoyment of keyboards |
| Cross-industry projects | JIS Layout Alliance | Redefined the bottom row of Japanese keyboards and contributed to the development of keycap replacement culture |
| Community Activation | X Missionary, survey, and response analysis | Increased discussion, expansion of fan base, and motivation of younger generations |
Visit GreenKeys and @Hottyhottea for the latest activities.
Supervision and Writing Media
Currently in operation
- AiR-WiFi Magazine (outsourced management of all media operations)
Past Initiatives
- A little WiFi (writing and supervision)
- WiFiPman (site direction, writing, and supervision) -> Contract expires February 2024.
- MasterNet (site direction, writing, and supervision) → contract terminated in February 2024.
- Professional Gems|15 Kids’ Cell Phone Recommendations! Major carriers and cheap SIMs too! (Supervised by)
- Professional Gems|10 Cheap SIM Recommendations! Detailed information on advantages disadvantages and how to switch (supervised by)
- UQ WiMAX|Experts teach you! How to save money on home telecommunication costs? (Written and supervised by)
- Internet Professional|GMO Internet Group, Inc. (in charge of supervising all content)
- Picky’s|Why is AHAMO so cheap? Explanation based on merits and demerits, including reasons for popularity and recommendations (supervised)
- Picky’s|Before Changing OCN Mobile ONE Models! Explanation of disadvantages, reputation, and procedures of the new course (supervised by the company)
- Picky’s|NURO Mobile is recommended as the cheapest low-cost SIM! Explanation of rate plans, features, and transfer procedures (supervised)
- Lofree Edge PRTIMES (responsible for writing)
Initiatives
- November 3, 2025 JIS Layout Alliance is launched. Invites participants in a cross-industry project to define space bar length and stabilizer spacing for Japanese-language keyboards.
- October 10, 2025 Jezail Funder Cornix LP self review conducted
- September 25, 2025 WOBKEY ZEN65 review received from KIBU Corporation (Crowdfunding on Makuake from the same day)
- September 24, 2025 Gravity45 Aluminium Edition MOQ achieved for production and sale
- September 23, 2025 Awekeys Wild Ice review ordered (crowdfunded on Kickstarter on the same day)
- September 23, 2025 Participated in Tokyo Keyboard Expo 2025 as an interviewer
- August 28, 2025 Started business alliance with Jezail Funder Japan, a keycap/keyboard brand, using performance-based advertising.
- August 27, 2025 Gravity45 Launch Announced in PRTIMES Press Release
- July 30, 2025: ” Lofree Flow Lite JIS ” keyboard, which he himself supervised the layout of, goes on sale from Sanyo Godo Kaisha.
- June 10, 2025 Special coupon code “GREENKEYS5” is issued as part of the strengthening of cooperation with “zfrontier” to offer a 5% discount on the settlement amount for users.
- June 8, 2025 Release of “KeebTax,” a cost simulator for personal imports specializing in keyboard-related products.
- June 8, 2025 Consignment sales of Gravity36v2 begin at Yuusha Kobo for storefront only.
- June 1, 2025 Started business alliance with Chinese keyboard store “zfrontier” through performance-based advertising
- May 28, 2025 Gravity36 v2 Sales Launch Announced as Press Release in PRTIMES
- May 24, 2025 cocotkeebs [cocot38mini] completes consignment sales. Planned number of 70 sets sold out and stock sales are now in stock.
- May 6, 2025 Lofree Influencer Meeting in Tokyo (hosted by Lofree and co-sponsored by Sanyo Godo Kaisha), where he gave a lecture on “What we can do to convey the appeal of keyboards”.
- May 4, 2025 Participate in Tenkaichi Keyboard Waiwai Kai Vol. 8 as press
- May 2, 2025 Started consignment sales of cocotkeebs [cocot38mini] on its own e-commerce site “Greenkeys Shop”.
- May 1, 2025 Total sales of Gravity36 exceed 100 sets
- April 1, 2025 Started planning for Gravity45, the second installment of the Gravity series
- March 22, 2025 Sold “Gravity36” at the 2nd Keyboard Market Tokyo 2025 on consignment to Sanyo LLC / Collaborated with JizaiStyle to sell limited edition TRRS cables
- March 22, 2025 Participated in the 2nd Keyboard Market Tokyo 2025 as press.
- March 18, 2025 Total number of kits sold for Gravity36 reaches 80 sets.
- February 9, 2025 Started selling Gravity36, the company’s first self-made keyboard kit, on the company’s e-commerce site
- Submitted by PRTIMES on February 3, 2025 for sale of Gravity36
- January 25, 2025 ZEERA receives review request for ZEERA MacForge Gen2 case for Mac mini m4
- January 10, 2025 Launch of in-house e-commerce site ” Greenkeys Shop
- October 3, 2024 Press release issued by PRTIMES regarding the release of replacement keycaps exclusively for HHKB Studio.
- September 18, 2024 Formed business alliance with FKcaps through performance-based advertising
- September 10, 2024 ” Explanation of Keycap Profiles, Types and Printing Methods ” contributed to “HHKB Life”, a media operated by PFU Corporation, is published.
- July 11, 2024 – PFU Corporation contributed to the July 11, 2024 issue of HHKB Life titled ” Pointing Stick or Trackball? Introduction to the usage scenarios ” contributed to the article “Pointing Stick or Trackball?
- June 2024 Started business alliance with ” Sanyo Godo Kaisha “, Japanese distributor of NuPhy and Lofree, through performance-based advertising.
- May 2024 Received an order to contribute to ” HHKB Life ” by PFU Media Inc. as a subcontractor.
- May 2024 Started business alliance with ” KIBU Corporation “, a sales agent of Wobkey/DOIO, etc., through performance-based advertising.
- May 2024 Participated in the keyboard meetup event ” Tenkey Vol. 6″ as media press
- May 2024 Review handsets for DoRACOON, a mobile communication service using cloud SIM technology provided by NTT Media Supply (YT40/YT65)
- April 2024 Lofree handles press release in Japan for Egde, which began crowdfunding on April 25 (PRTIMES)
- March 2024 Start of performance-based advertising agreement with Cerakey
- March 2024 Sequence pattern for Ortholinear Kit for KAT Operator to be released by Keyreative.
- March 2024 Start of performance-based compensation agreement with Keyreative
- March 2024 Start of performance-based advertising agreement with Cerakey
- March 2024 Participated in the first Keyboard Market Tokyo as media press
- February 2024 End of alliance with Niche Company, Inc. through media management
- January 2024|An interview with the supervisor ( 10 questions about fiber optic lines/10 questions about pocket WiFi/10questions about cheap SIMs ) will be published in MOBA LIFE (Smart Mobile Communications Co., Ltd.).
- September 2023 povo library|”Education costs can be saved! How to Review Communication Costs for Tablet Learning” Supervisor for the article “How to Review Communication Costs for Tablet Learning”.
- April 2023 Supervisor for Pickey’s (rentry, Inc.) ” OCN Mobile ONE ” and ” NURO Mobile ” review articles.
- March 2023 Supervised by Professional Gems (NEXER Co., Ltd.)
- December 2022 Pickey’s (rentry, Inc.) ” ahamo ” review article supervised by
- September 2022 Launch of ” GreenKeys,” a media specializing in keyboards
- April 2022 Writing Supervisor at UQ WiMAX (UQ Communications Inc.)
- April 2022 Appointed as Writing Supervisor/Site Director for MasterNet (operated by Niche Company, Inc.)
- Feb. 2022: Representative Kawamura appointed as NURO Mobile Ambassador.
- February 2022 Awarded Lenovo Ambassador MVP
- Feb. 2022 Supervised articles for the entire Net professional (GMO Internet Group Inc.) website.
- November 2021 Supervision at Iroha Net (operated by Space Agent Inc.)
- November 2021: Representative Kawamura appointed as Lenovo Ambassador
- October 2021 Appointed as Writing Supervisor/Site Director for WiFi Pman (operated by Niche Company, Inc.)
- September 2021 Supervised articles for Professional Gems (managed by NEXER Co., Ltd.)
- July 2021 Appointed as general site director/writing supervisor for AiR-WiFi Magazine (operated by FREEDiVE, Inc.)
- April 2021 Published in the media ” Manek Guide (Seiby Co., Ltd.)
- March 2021 “Smartphone Switching Consultation Center” and “Smartphone Switching Simulator” appear in the media ” Saizowoman” / ” BCN+ “.
- February 2021 Release of ” Smartphone Switching Consultation Center Online ” and ” Smartphone Switching Fee Simulator
- December 2020 URL changed from waves.greenechoes-studio.com to greenwaves.jp
- Oct. 2020 Release of ” Mobile WiFi Custom Search ” function
- March 2020 Name changed from “Denpa Choice Navi” to “GreenWaves
- March 2019 “Kawamura’s Cheap SIM Switching Guide Center” renamed to “Denpa Choice Navi”.
- January 2019 Registered as a sole proprietorship
- September 2018 – “Kawamoura’s Cheap SIM Switching Guide Center” begins operations.
- January 2018 After label hiatus, founded GreenEchoes Studio as a website management business in Niigata City
- April 2012 – February 2018 GreenEchoes Studio was established as a music label for the music band tone and released three mini-albums.

