KU

Koji Umezawa

TO Toyota: 7 patents #4,145 of 26,838Top 20%
NC Nippon Piston Ring Co.: 2 patents #59 of 208Top 30%
SO Sony: 2 patents #12,963 of 25,231Top 55%
📍 Susono, JP: #296 of 1,238 inventorsTop 25%
Overall (All Time): #439,746 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
12421911 Controller for internal combustion engine and method for controlling internal combustion engine Yuto Ikeda, Satoshi Ido, Makoto Yamazaki, Katsuhiro Ito 2025-09-23
12146433 Controller for hydrogen engine Yuto Ikeda, Makoto Yamazaki 2024-11-19
12140095 Controller for internal combustion engine Yuto Ikeda, Makoto Yamazaki 2024-11-12
12123368 Controller and control method for internal combustion engine Yuto Ikeda, Makoto Yamazaki 2024-10-22
11053825 Exhaust gas purification apparatus for internal combustion engine Kinji Morihiro 2021-07-06
10626775 Exhaust purification system of internal combustion engine Kinji Morihiro 2020-04-21
9181837 Secondary air supply system for internal combustion engine Shinya Kondo, Yusuke Kawamura 2015-11-10
5668681 Automatic-reverse tape player with a switchable rotational gear assembly 1997-09-16
5598631 Method of making machine element with at least a fitting member pressure-fitted on a shaft Tamio Sakurai 1997-02-04
5541786 Loading apparatus for tape cassette including safety mechanism for protecting cassette housing and hanger structure from damage by externally applied force 1996-07-30
5419217 Machine element with at least a fitting member pressure-fitted on a shaft and method of making the same Tamio Sakurai 1995-05-30