Patents/Inventors

Tsutomu Yamaguchi

HamamatsuJP8 patents

9 Patents

US124125542025
Key Guide Structure for Keyboard Instrument
KABUSHIKI KAISHA KAWAI GAKKI SEISAKUSHO
0 cites
US123347122025
Optical Semiconductor Integrated Element and Method of Manufacturing Optical Semiconductor Integrated Element
Mitsubishi Electric Corporation
0 cites
US122239342025
Keyboard Device for Keyboard Instrument
KABUSHIKI KAISHA KAWAI GAKKI SEISAKUSHO
0 cites
US122055682025
Keyboard Device for Keyboard Instrument
KABUSHIKI KAISHA KAWAI GAKKI SEISAKUSHO
0 cites
US121994102025
Semiconductor Device and Method for Producing the Same
Mitsubishi Electric Corporation
0 cites
US121908532025
Keyboard Device for Keyboard Instrument
KABUSHIKI KAISHA KAWAI GAKKI SEISAKUSHO
0 cites
US121545312024
Key for Keyboard Device
KABUSHIKI KAISHA KAWAI GAKKI SEISAKUSHO
0 cites
US121364032024
Keyboard Device for Keyboard Instrument
KABUSHIKI KAISHA KAWAI GAKKI SEISAKUSHO
0 cites
US116163422023
Semiconductor Optical Element, Semiconductor Optical Integrated Element, and Method for Manufacturing Semiconductor Optical Element
Mitsubishi Electric Corporation
0 cites