MY

Masaaki Yoshikawa

Ricoh Company: 113 patents #27 of 9,818Top 1%
Yamaha Motor: 26 patents #18 of 2,310Top 1%
Aisin Seiki Kabushiki Kaisha: 10 patents #313 of 3,782Top 9%
MM Mitsubishi Mining: 4 patents #189 of 2,247Top 9%
AC Asahi Glass Co.: 4 patents #490 of 2,251Top 25%
NC Nippon Metal Industry Co.: 4 patents #1 of 22Top 5%
PA Panasonic: 3 patents #7,617 of 21,108Top 40%
Sumitomo Electric Industries: 3 patents #7,735 of 21,551Top 40%
Mitsubishi Electric: 2 patents #11,187 of 25,717Top 45%
NC Nikkiso Co.: 2 patents #107 of 287Top 40%
NK Nippon Gohsei Kagaku Kogyo: 2 patents #30 of 142Top 25%
NM Nisshin Flour Milling: 2 patents #106 of 320Top 35%
RI Riken: 2 patents #375 of 1,824Top 25%
TC Tohoku Ricoh Co.: 2 patents #69 of 204Top 35%
DC Dena Co.: 1 patents #81 of 210Top 40%
BL Brumby Corporation Limited: 1 patents #13 of 35Top 40%
IR Institute Of Physical And Chemical Research: 1 patents #66 of 172Top 40%
KC Kyowa Hakko Kogyo Co.: 1 patents #549 of 943Top 60%
KK Kirin Beer Kabushiki Kaisha: 1 patents #149 of 379Top 40%
TD Tokyo R & D: 1 patents #22 of 42Top 55%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
Overall (All Time): #3,964 of 4,157,543Top 1%
186
Patents All Time

Issued Patents All Time

Showing 151–175 of 186 patents

Patent #TitleCo-InventorsDate
RE36082 Vacuum degassing method and its apparatus Kazuhiko Ishimura, Fumiaki Saito, Misao Okada, Shinsuke Nakajima 1999-02-09
5868113 Engine combustion chamber and air intake device 1999-02-09
5845613 Variable valve timing arrangement for internal combustion engine 1998-12-08
5839032 Image forming apparatus having selectably controlled sheet discharge paths Motokazu Yasui, Yasuhisa Katoh 1998-11-17
5765531 Multi-valve engine Shigenobu Uchiyama 1998-06-16
5720255 Control valve for multi-valve engine 1998-02-24
5718196 Lubrication and camshaft control system for engine Shigenobu Uchiyama, Hironao Takahashi 1998-02-17
5697713 Thermal printer having a thermal head and platen roller Genzi Oshino 1997-12-16
5687685 Valve seat and method Junkichi Amano 1997-11-18
5685265 Multi valve engine 1997-11-11
5551394 Induction system for engine 1996-09-03
5369015 Method for producing an angiotensin converting enzyme inhibitor-containing composition Keiichi Yokoyama, Masayasu Hasegawa, Ryouichi Yasumoto, Hiroyuki Fujita 1994-11-29
5338668 Opioid peptides derived from wheat proteins Shin-ichi Fukudome 1994-08-16
5316563 Vacuum degassing method and its apparatus Kazuhiko Ishimura, Fumiaki Saito, Misao Okada, Shinsuke Nakajima 1994-05-31
5314807 Method for producing an angiotensin converting enzyme inhibitor-containing composition Keiichi Yokoyama, Masayasu Hasegawa, Ryouichi Yasumoto, Hiroyuki Fujita 1994-05-24
5307785 Ignition system for multi-valve engine 1994-05-03
5279274 Ignition system for multi-valve engine 1994-01-18
5268360 Opioid peptides derived from wheat proteins Shin-ichi Fukudome 1993-12-07
5094193 Cylinder head cooling arrangement 1992-03-10
RE33787 Four-cycle engine 1992-01-07
4983293 Semipermeable membrane and process for preparing same Masashi Yoshida, Katsuhisa Suzuki 1991-01-08
4957470 Valve operating system for engine 1990-09-18
4957942 Semipermeable membrane and process for preparing same Masashi Yoshida, Katsuhisa Suzuki 1990-09-18
4942857 Combustion chamber for engine with multiple valves 1990-07-24
4940479 Method for manufacturing float glass Yasuo Sato, Tsunehiro Saito, Toshihito Kamioka, Yukio Yoskikawa 1990-07-10