YH

Yoichi Hayakawa

AI Aisin-Warner: 35 patents #1 of 98Top 2%
TO Toyota: 22 patents #976 of 26,838Top 4%
OD Oki Data: 12 patents #49 of 635Top 8%
AC Aisin Aw Co.: 10 patents #174 of 2,011Top 9%
FC Fuji Medical Instruments Mfg. Co.: 1 patents #7 of 22Top 35%
KA Kabushiki Kaisha Aichi: 1 patents #14 of 38Top 40%
Overall (All Time): #40,633 of 4,157,543Top 1%
59
Patents All Time

Issued Patents All Time

Showing 1–25 of 59 patents

Patent #TitleCo-InventorsDate
10139751 Image formation apparatus detecting a response from communication part Satoshi Yamamoto, Kentaro Hasegawa, Masahiko Hoshino 2018-11-27
10018949 Image forming apparatus Tatsuhiko Shimomura 2018-07-10
9158258 Image formation apparatus Masahiro SONODA 2015-10-13
9137409 Electronic apparatus and image forming apparatus Masahiro SONODA 2015-09-15
8971733 Image forming unit and image forming apparatus Masahiro SONODA 2015-03-03
8837976 Sub power source-type electronic device and image forming apparatus Koji Kato, Tatsuho Yoshida 2014-09-16
8817294 Image forming apparatus Masahiro SONODA 2014-08-26
8750728 Image forming apparatus that compares stored ID information to determine whether to permit use of a replacement part Yukio Ito 2014-06-10
8744281 Image forming apparatus Koji Kato 2014-06-03
8351802 Image forming apparatus having a replaceable part Masahiro SONODA 2013-01-08
7822354 Power conservation device and image forming apparatus 2010-10-26
7621452 Electronic apparatus 2009-11-24
6199707 Telescopic boom Takuo Suzuki, Tomomasa Ebara, Makoto Nagao, Michito Tsuriya 2001-03-13
5232418 Hydraulic actuator in automatic transmission Hideyuki Aoki, Kozo Kato 1993-08-03
5230411 Nested piston hydraulic operator for automatic transmission Masaaki Nishida, Chihiro Hosono 1993-07-27
5224908 Automatic transmission Masaaki Nishida, Chihiro Hosono 1993-07-06
5203862 Automatic transmission with hydraulic operator having nested drums Masaaki Nishida, Chihiro Hosono 1993-04-20
5157984 Sealing device of an automatic transmission Chihiro Hosono 1992-10-27
5131498 Lubricating device of automatic transmission Naoji Kato, Masaaki Nishida 1992-07-21
5099954 Oil strainer device of an automatic transmission Katsuya Kikuchi, Chihiro Hosono 1992-03-31
5098354 Accumulator device of hydraulic fluid control system Yoshinari Kuwayama, Jiro Nishiwaki 1992-03-24
5031480 Hydraulic controller for an automatic transmission Yoshinari Kuwayama, Masahiko Ando 1991-07-16
5020393 Hydraulic controller for an automatic transmission Yoshinari Kuwayama, Masahiko Ando 1991-06-04
4945482 Transmission control system Seiichi Nishikawa, Yoshiharu Harada, Kagenori Fukumura, Masao Kawai 1990-07-31
4922765 Lubricating structure for transmission mechanism Takahiro Yamashita, Kazuaki Watanabe, Yoshiharu Harada 1990-05-08