YF

Yasuhiro Fujiwara

HO Hoya: 36 patents #9 of 1,290Top 1%
CC Clover Mfg. Co.: 11 patents #4 of 39Top 15%
Ricoh Company: 11 patents #2,054 of 9,818Top 25%
Sumitomo Electric Industries: 6 patents #4,612 of 21,551Top 25%
OC Olympus Optical Co.: 4 patents #789 of 2,334Top 35%
TI Toyota Industries: 3 patents #276 of 955Top 30%
Canon: 2 patents #12,681 of 19,416Top 70%
Mitsubishi Electric: 2 patents #11,187 of 25,717Top 45%
OD Oki Data: 2 patents #320 of 635Top 55%
MK Mitsubishi Denki K.K.: 1 patents #164 of 577Top 30%
TL Tokyo Electron Limited: 1 patents #3,538 of 5,567Top 65%
PA Panasonic: 1 patents #13,264 of 21,108Top 65%
AC Aisin Aw Co.: 1 patents #1,133 of 2,011Top 60%
NU National University Corporation Gunma University: 1 patents #97 of 263Top 40%
SC Sekisui Plastics Co.: 1 patents #60 of 144Top 45%
Overall (All Time): #21,001 of 4,157,543Top 1%
83
Patents All Time

Issued Patents All Time

Showing 76–83 of 83 patents

Patent #TitleCo-InventorsDate
5853459 Exhaust as purifying method, exhaust gas filter, and exhaust gas filter purifying apparatus using same Yoshinobu Kuwamoto, Kensei Fukuda 1998-12-29
5561652 Apparatus for recording data on optical disk Takuya Hase 1996-10-01
5438562 Optical head for recording and/or reproducing information on and/or from opto-magnetic record medium Shohei Kobayashi, Yasuhiro Miyazaki 1995-08-01
5432760 Method of measuring phase difference of opto-magnetic record medium and apparatus for carrying out said method Akihiko Yoshizawa 1995-07-11
5347451 Electronic cash register having auxiliary file containing information which is transferrable to an article file to reduce operator entries Ryuuichi Fukuoka, Ryuuichirou Masui 1994-09-13
5337237 Constant speed driving device Kazuyori Katayama 1994-08-09
5218544 Constant-speed driving control device for motor vehicles Kazuyori Katayama 1993-06-08
5203423 Vehicle constant-speed cruising device Kazuyori Katayama 1993-04-20