Author/Supervisor Information｜Ryosuke Kawamura

List of Authored Articles

• GreenWaves for Smarphone (currently out of update)
• GreenWaves for WiFi
• GREENTIMES (no longer being updated)
• GreenKeys
• AiR-WiFi Magazine
• WiFi Pman (through ~2023)
• MasterNet (through ~2023)

Areas of expertise

• 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
• Information on International Keyboards
• Keyboard Review
• Create your own keyboard
• Reviews on gadgets in general
• Web Writing
• Editorial supervision
• article fairness
• General site management

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

• April 2012 – February 2018 GreenEchoes Studio was established as a music label for the music band tone and released three mini-albums.
• January 2018 After label hiatus, founded GreenEchoes Studio as a website management business in Niigata City
• September 2018 – “Kawamoura’s Cheap SIM Switching Guide Center” begins operations.
• January 2019 Registered as a sole proprietorship
• March 2019 “Kawamura’s Cheap SIM Switching Guide Center” renamed to “Denpa Choice Navi”.
• March 2020 Name changed from “Denpa Choice Navi” to “GreenWaves
• Oct. 2020 Release of ” Mobile WiFi Custom Search ” function
• December 2020 URL changed from waves.greenechoes-studio.com to greenwaves.jp
• February 2021 Release of ” Smartphone Switching Consultation Center Online ” and ” Smartphone Switching Fee Simulator
• March 2021 “Smartphone Switching Consultation Center” and “Smartphone Switching Simulator” appear in the media ” Saizowoman” / ” BCN+ “.
• April 2021 Published in the media ” Manek Guide (Seiby Co., Ltd.)
• July 2021 Appointed as general site director/writing supervisor for AiR-WiFi Magazine (operated by FREEDiVE, Inc.)
• September 2021 Supervised articles for Professional Gems (managed by NEXER Co., Ltd.)
• October 2021 Appointed as Writing Supervisor/Site Director for WiFi Pman (operated by Niche Company, Inc.)
• November 2021: Representative Kawamura appointed as Lenovo Ambassador
• November 2021 Supervision at Iroha Net (operated by Space Agent Inc.)
• Feb. 2022 Supervised articles for the entire Net professional (GMO Internet Group Inc.) website.
• February 2022 Awarded Lenovo Ambassador MVP
• Feb. 2022: Representative Kawamura appointed as NURO Mobile Ambassador.
• April 2022 Appointed as Writing Supervisor/Site Director for MasterNet (operated by Niche Company, Inc.)
• April 2022 Writing Supervisor at UQ WiMAX (UQ Communications Inc.)
• September 2022 Launch of ” GreenKeys,” a media specializing in keyboards
• December 2022 Pickey’s (rentry, Inc.) ” ahamo ” review article supervised by
• March 2023 Supervised by Professional Gems (NEXER Co., Ltd.)
• April 2023 Supervisor for Pickey’s (rentry, Inc.) ” OCN Mobile ONE ” and ” NURO Mobile ” review articles.
• 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”.
• 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.).
• February 2024 End of alliance with Niche Company, Inc. through media management
• March 2024 Participated in the first Keyboard Market Tokyo as media press
• March 2024 Start of performance-based advertising agreement with Cerakey
• March 2024 Start of performance-based compensation agreement with Keyreative
• March 2024 Sequence pattern for Ortholinear Kit for KAT Operator to be released by Keyreative.
• April 2024 Lofree handles press release in Japan for Egde, which began crowdfunding on April 25 (PRTIMES)
• May 2024 Review handsets for DoRACOON, a mobile communication service using cloud SIM technology provided by NTT Media Supply (YT40/YT65)
• May 2024 Participated in the keyboard meetup event ” Tenkey Vol. 6″ as media press
• May 2024 Started business alliance with ” KIBU Corporation “, a sales agent of Wobkey/DOIO, etc., through performance-based advertising.
• May 2024 Received an order to contribute to ” HHKB Life ” by PFU Media Inc. as a subcontractor.
• June 2024 Started business alliance with ” Sanyo Godo Kaisha “, Japanese distributor of NuPhy and Lofree, through performance-based advertising.
• 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?
• September 10, 2024 ” Explanation of Keycap Profiles, Types and Printing Methods ” contributed to “HHKB Life”, a media operated by PFU Corporation, is published.
• September 18, 2024 Formed business alliance with FKcaps through performance-based advertising
• October 3, 2024 Press release issued by PRTIMES regarding the release of replacement keycaps exclusively for HHKB Studio.
• January 10, 2025 Launch of in-house e-commerce site ” Greenkeys Shop
• January 25, 2025 ZEERA receives review request for ZEERA MacForge Gen2 case for Mac mini m4
• Submitted by PRTIMES on February 3, 2025 for sale of Gravity36
• February 9, 2025 Started selling Gravity36, the company’s first self-made keyboard kit, on the company’s e-commerce site
• March 18, 2025 Total number of kits sold for Gravity36 reaches 80 sets.
• 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.
• April 1, 2025 Started planning for Gravity45, the second installment of the Gravity series
• May 1, 2025 Gravity36v2 release announced
• May 4, 2025 Participate in Tenkaichi Keyboard Waiwai Kai Vol. 8 as press
• 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”.