OS

Osamu Sakai

PA Panasonic: 19 patents #1,080 of 21,108Top 6%
Sumitomo Electric Industries: 19 patents #1,151 of 21,551Top 6%
NI Ngk Insulators: 10 patents #329 of 2,083Top 20%
Sharp Kabushiki Kaisha: 8 patents #2,076 of 10,731Top 20%
HI Hitachi: 6 patents #6,582 of 28,497Top 25%
AC Alps Electric Co.: 3 patents #607 of 2,177Top 30%
NK Nichia Kagaku Kogyo K.K.: 2 patents #11 of 36Top 35%
OE Otis Elevator: 2 patents #650 of 1,840Top 40%
SC Seed Co.: 1 patents #13 of 67Top 20%
SC Senju Pharmaceutical Co.: 1 patents #120 of 231Top 55%
TO Toto: 1 patents #620 of 1,113Top 60%
AL A.K. Technical Laboratory: 1 patents #12 of 34Top 40%
TO Toyota: 1 patents #15,335 of 26,838Top 60%
AC Alps Alpine Co.: 1 patents #246 of 525Top 50%
AR Asahi Rubber: 1 patents #20 of 63Top 35%
DI Diamet: 1 patents #20 of 33Top 65%
HE Hitachi Micro Computer Engineering: 1 patents #131 of 393Top 35%
HE Hitachi Vlsi Engineering: 1 patents #390 of 666Top 60%
KC Kokuyo Co.: 1 patents #86 of 136Top 65%
Mitsubishi Electric: 1 patents #15,491 of 25,717Top 65%
Overall (All Time): #24,639 of 4,157,543Top 1%
76
Patents All Time

Issued Patents All Time

Showing 51–75 of 76 patents

Patent #TitleCo-InventorsDate
6746793 Polymer electrolyte fuel cell Hisaaki Gyoten, Eiichi Yasumoto, Kazuhito Hatoh, Makoto Uchida, Yasushi Sugawara +6 more 2004-06-08
6696194 Polymer electrolytic fuel cell Yoshihiro Hori, Takeshi Yonamine, Masato Hosaka 2004-02-24
6665118 Rear-projection screen and rear-projection image display Hiroshi Yamaguchi, Kenichi Ikeda, Toru Tatsumi, Satoshi Aoki 2003-12-16
6660424 Fuel cell and method of manufacture thereof Hisaaki Gyoten, Eiichi Yasumoto, Makoto Uchida, Yasushi Sugawara, Kazufumi Nishida +6 more 2003-12-09
6638655 Fuel cell system Hisaaki Gyoten, Kazuhito Hatoh, Junji Niikura, Makoto Uchida 2003-10-28
6628348 Plasma address electrooptical device Sadahiko Yasukawa, Kazuhiko Inoguchi 2003-09-30
6541144 Fuel cell system Hisaaki Gyoten, Hiroki Kusakabe, Eiichi Yasumoto 2003-04-01
6331348 Substrate having repaired metallic pattern and method and device for repairing metallic pattern on substrate Keiji Takagi 2001-12-18
6179902 Apparatus for recovering, refining, and storing hydrogen gas Takayuki Kawae, Tomonori Takahashi 2001-01-30
6142096 Electronic device manufacturing apparatus and method for manufacturing electronic device Katsuhiko Nomoto 2000-11-07
5958091 Hydrogen preparing apparatus Tomonori Takahashi 1999-09-28
5935374 Electronic device fabrication apparatus Yasuhiko Ito 1999-08-10
5674301 Hydrogen preparing apparatus Tomonori Takahashi 1997-10-07
5614001 Hydrogen separator, hydrogen separating apparatus and method for manufacturing hydrogen separator Shinichi Kosaka, Tomonori Takahashi, Takao Soma 1997-03-25
5530209 Coordinate input device and method for manufacturing same Takeshi Watanabe, Minoru Hirota 1996-06-25
5523018 Phosphor composition, phosphor-coating composition, discharge lamp, and preparation method thereof Kouichi Okada, Toshiaki Tateiwa, Tetsuya Sadamoto, Yoshihito Hario, Yuji Itsuki +2 more 1996-06-04
5518530 Connected body comprising a gas separator and a metal, and apparatus for separating hydrogen gas from a mixed gas Tomonori Takahashi, Tetsuhisa Abe, Tomoyuki Fujii 1996-05-21
5433888 Phosphor composition, phosphor-coating composition, discharge lamp and preparation method thereof Kouichi Okada, Toshiaki Tateiwa, Tetsuya Sadamoto, Yoshihito Hario, Yuji Itsuki +2 more 1995-07-18
5316214 Air conditioner for railway vehicles Takane Suzuki, Sakuo Sugawara, Nobuyoshi Hamazaki, Ken Ito, Koichiro Tsutsumi 1994-05-31
5313893 Desk Shinichi Kaneda, Shouji Tamaki 1994-05-24
5208782 Semiconductor integrated circuit device having a plurality of memory blocks and a lead on chip (LOC) arrangement Toshiyuki Sakuta, Masamichi Ishihara, Kazuyuki Miyazawa, Masanori Tazunoki, Hidetoshi Iwai +10 more 1993-05-04
5177743 Semiconductor memory Takashi Shinoda 1993-01-05
4943967 Semiconductor memory with an improved dummy cell arrangement and with a built-in error correction code circuit Takashi Shinoda 1990-07-24
4817052 Semiconductor memory with an improved dummy cell arrangement and with a built-in error correcting code circuit Takashi Shinoda 1989-03-28
4703453 Semiconductor memory with an improved dummy cell arrangement and with a built-in error correcting code circuit Takashi Shinoda 1987-10-27