Inventor · disambiguated record
Masahiko Iwase
Also filed as: IWASE MASAHIKO
8 granted patents·5 pending applications·58 citations·filing 1990–2025
84Inventor score
Files withKK KAWAI GAKKI SEISAKUSHO5KAWAI MUSICAL INSTR MFG CO4DAIKIN MFG CO LTD3KAWAI MUSICAL INSTRUMENTS MFG CO LTD1
Top patents by PatentIndex Score
13 records- 0182US8921676B2Key for keyboard instrumentKAWAI MUSICAL INSTR MFG CO·Filed 2014·Granted Dec 30, 2014·8 cites·6 claims
- 0277US5088583AClutch cover assembly with spring biased release assemblyDAIKIN MFG CO LTD·Filed 1990·Granted Feb 18, 1992·28 cites·13 claims
- 0367US8748725B2Key switch for electronic pianoKAWAI MUSICAL INSTR MFG CO·Filed 2012·Granted Jun 10, 2014·4 cites·13 claims
- 0457US2025308494A1Musical sound control device for keyboard instrumentKK KAWAI GAKKI SEISAKUSHO·Filed 2025·Application pending·0 cites
- 0557US2025308495A1Musical sound control method for keyboard instrumentKK KAWAI GAKKI SEISAKUSHO·Filed 2025·Application pending·0 cites
- 0657US2025308490A1Musical sound control method for keyboard instrumentKK KAWAI GAKKI SEISAKUSHO·Filed 2025·Application pending·0 cites
- 0755US6750389B2Musical performance control method, musical performance control apparatus and musical tone generating apparatusKAWAI MUSICAL INSTR MFG CO·Filed 2002·Granted Jun 15, 2004·4 cites·11 claims
- 0849US2025308486A1Keyboard device for keyboard instrumentKK KAWAI GAKKI SEISAKUSHO·Filed 2025·Application pending·0 cites
- 0949US2025308485A1Keyboard device for keyboard instrumentKK KAWAI GAKKI SEISAKUSHO·Filed 2025·Application pending·0 cites
- 1044US9361861B2Weight for key and key for keyboard musical instrumentKAWAI MUSICAL INSTR MFG CO·Filed 2014·Granted Jun 7, 2016·0 cites·3 claims
- 1139US5580312ADamper disk assemblyDAIKIN MFG CO LTD·Filed 1994·Granted Dec 3, 1996·10 cites·11 claims
- 1234US10347224B2Key of keyboard instrumentKAWAI MUSICAL INSTRUMENTS MFG CO LTD·Filed 2016·Granted Jul 9, 2019·0 cites·9 claims
- 1331US5190381ARelease bearing assemblyDAIKIN MFG CO LTD·Filed 1992·Granted Mar 2, 1993·4 cites·1 claims
Join the waitlist — get patent alerts
Get an alert when Masahiko Iwase files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →