TI

Tsuyoshi Ishikawa

SO Sony: 42 patents #648 of 25,231Top 3%
EN Enplas: 25 patents #5 of 255Top 2%
TO Toyota: 11 patents #2,600 of 26,838Top 10%
DE Denso: 11 patents #1,094 of 11,792Top 10%
AF Ashizawa Finetech: 8 patents #1 of 14Top 8%
PE Pentax: 6 patents #247 of 761Top 35%
YK Yasuhiro Koike: 5 patents #2 of 25Top 8%
HO Hoya: 4 patents #305 of 1,290Top 25%
Nissan Motor Co.: 4 patents #1,803 of 8,689Top 25%
NC Nitto Jushi Kogyo Co.: 4 patents #3 of 21Top 15%
ML Mitsui Mining Company, Limited: 3 patents #6 of 92Top 7%
Ricoh Company: 3 patents #4,826 of 9,818Top 50%
PE Pentax: 2 patents #187 of 396Top 50%
Mitsubishi Electric: 2 patents #11,187 of 25,717Top 45%
KU Keio University: 2 patents #97 of 781Top 15%
ND Nitto Denko: 2 patents #1,207 of 2,479Top 50%
Dai Nippon Printing Co.: 2 patents #976 of 2,222Top 45%
HI Hitachi: 1 patents #17,742 of 28,497Top 65%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
TL Toyota Central R&D Labs: 1 patents #823 of 1,657Top 50%
PA Panasonic: 1 patents #13,264 of 21,108Top 65%
Overall (All Time): #10,096 of 4,157,543Top 1%
119
Patents All Time

Issued Patents All Time

Showing 76–100 of 119 patents

Patent #TitleCo-InventorsDate
7563608 Method for manufacturing a sintered compact for use as a cell culture base Kazuyoshi Yamaguchi, Asako Matsushima 2009-07-21
7441520 Valve-timing control apparatus of internal combustion engine Kengo Kubo 2008-10-28
7374116 Circulation type media agitator mill Masakatsu Iioka, Toshihiro Ishii, Kaori Harigai 2008-05-20
RE40146 Tapered light guide plate for surface light source device and method of making by injection molding via supplementary cavity Hiroshi Yamazaki 2008-03-11
7169078 Engine idle speed control device Eri Imai, Masaki Koga 2007-01-30
7150862 Method of manufacturing powder Masanori Nakasu, Takatoshi Kudou, Yoshiyuki Ogawara, Tsutomu Takahashi, Katsumi Kawamura 2006-12-19
6815384 Method for manufacturing sintered piece 2004-11-09
6571069 Photographic zenith telescope Yutaka Ezaki, Izumi Mikami 2003-05-27
6492586 Space photovoltaic power generation system, power satellite, and control satellite Izumi Mikami, Hiroyuki Sato 2002-12-10
6478438 Side light type surface light source device Nobuhisa Noguchi 2002-11-12
6396634 Surface light source device of side light type Nobuhisa Noguchi 2002-05-28
6241358 Tandem lighting panel Eizaburo Higuchi, Akihiro Horibe 2001-06-05
6027221 Surface light source device of side light type and mold for light guide plate employed in the device Hiroshi Yamazaki 2000-02-22
6024463 Surface light source device of side light type with belt-like diffusible area Hiromi Sasako 2000-02-15
5971559 Surface light source device Kayoko Watai, Kazuaki Yokoyama 1999-10-26
5967637 Tapered light guide plate for surface light source device and method of making by injection molding via supplementary cavity Hiroshi Yamazaki 1999-10-19
5957561 Surface light source device of side light type and display Toshiaki Ono, Manabu Takashio 1999-09-28
5951138 Surface light source device of side light type 1999-09-14
5921651 Surface light source device of side light type having diffusing element with improved distribution pattern of light 1999-07-13
5914822 Chromatic aberration correcting element and its application Koichi Maruyama, Masahiro Oono, Satoru Tachihara, Masato Noguchi 1999-06-22
5818555 Surface light source device Kazuaki Yokoyama, Takayuki Arai, Tetsufumi Ohta 1998-10-06
5810464 Surface light source device of side light type Kayoko Watai, Kazuaki Yokoyama 1998-09-22
5791569 Crushing apparatus 1998-08-11
5779338 Surface light source device Kayoko Watai, Kazuaki Yokoyama 1998-07-14
5772305 Surface illuminant device Kayoko Watai 1998-06-30