Ryosuke Kawamura– Author –
Ryosuke Kawamura is the Editor-in-Chief of Greenkeys and the founder of GreenEchoes Studio.
He covers mechanical keyboards, custom keyboards, and input devices through reviews, interviews, hands-on testing, photography, and editorial work. He has reviewed more than 100 products and regularly reports on JIS-layout compatibility and trends in the Japanese keyboard market.
He also founded the Japan Layout Alliance (JLA), an industry collaboration initiative aimed at improving compatibility for Japanese-layout keyboards.
Greenkeys values editorial independence and transparency. Product samples, advertising relationships, and affiliate links are disclosed within each article.
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Keyboard
New white color “snow model” for HHKB Studio?
Note: Contrary to our expectations, the product went on sale on October 2. On September 25, 2024, the official X account of HHKB OFFICIAL, operated by PFU Co... Ryosuke Kawamura -
Keycaps
HHKB Studio dedicated keycap set installation image released|KAT WoB Extensions
This is Kawamura of Greenkeys management. The replacement keycap set for HHKB Studio has been in development with Keyreative since June 2024. In this issue, ... Ryosuke Kawamura -
Keycaps
Engraved versions of Cerakey’s White Crazed and Blue Crazed keycaps are back in stock|20% off for one week only
On September 20, 2024, Cerakey updated its official X to announce the restocking of White Crazed and Blue Crazed, which had been out of stock since their Jul... Ryosuke Kawamura -
Keyboard
Lofree Flow Lite receives support from approximately 3,400 people in the first 8 hours of sales
July 30, 2025 note: The long-awaited Japanese-language model "Flow Lite JIS" is now available for Lofree Flow Lite. Sales also started at Lofree Japan on Nov... Ryosuke Kawamura -
Keycaps
Business alliance with FKcaps, a custom keycap creation service, begins|Addition of dedicated Keyball templates
On September 18, 2024, GreenEchoes Studio, the operator of Greenkeys, entered into a business partnership with FKcaps, a Singaporean company, through perform... Ryosuke Kawamura -
Keycaps
HHKB Studio dedicated keycap set installation image released|KAT WoB Candy
This is Kawamura of Greenkeys management. The replacement keycap set for HHKB Studio, which we have been developing with Keyreative since June 2024, has been... Ryosuke Kawamura -
Keycaps
PBS CLASSIC GB Schedule Announced|First Engraved PBS Profile Keycap
Finally, it appears that engraved PBS profile keycaps will be available. On September 17, 2024, the release of PBS profile keycaps with engraving was reporte... Ryosuke Kawamura -
Keycaps
Comparison of specially shaped keys between HHKB Studio dedicated keycap set and genuine keycaps
This is Kawamura of Greenkeys management. The replacement keycap set for HHKB Studio has been in development with Keyreative since June 2024. In this issue, ... Ryosuke Kawamura -
Keycaps
PBS Profile Keycap Review|Cannonkeys and Keyreative’s Pearl Keycap
The PBS Profile Keycap is a keycap designed by "Matt3o", the designer behind Drop MT3 and GMK MTNU. Its main feature is a flat keycap with no difference in s... Ryosuke Kawamura -
Keycaps
Keyreative HIPPARCOS Review|Key Caps for an Epic Space-Themed World
After all, the standard replacement keycap is Black on White or White on Black. The coloring matches any keyboard, but the monochromatic composition may make... Ryosuke Kawamura -
Keycaps
Keyreative Signal Test Keycap Review|Retro Looks
If you want an inexpensive and complete set of keycap sets, Keyreative's ABS keycap series is a good choice. Keyreative offers a lineup of five full keycap s... Ryosuke Kawamura -
Keycaps
KAT Milkshake Review|For those looking for colorful, pop-up keycaps
In the past, mechanical keyboards were often viewed as a male hobby in Japan, but recently they have become increasingly popular with women, partly due to th... Ryosuke Kawamura -
Keycaps
Keyreative Asimov Keycap Review|The First Choice for Transparent, Sketchy Keycaps
Recently, a number of "skeleton keycaps" have appeared on the market, made of completely transparent ABS material that allows LEDs to pass through. One of th... Ryosuke Kawamura -
Keycaps
KAM Outline Review|A chic keycap set that blends retro and modern
Think of an old keyboard. It's big, it's thick, and it has a cream-colored body...it's nostalgic somehow. In earlier origins, we could go back to the old-fas... Ryosuke Kawamura -
Keycaps
Review of KAT White on Black (Candy/Extensions)|Simple but cool keycap with accents
One of the pleasures of mechanical keyboards is "keycap replacement. If your keyboard has Cherry MX compatible key switches, you can replace the keycaps your... Ryosuke Kawamura
