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 26–50 of 76 patents

Patent #TitleCo-InventorsDate
7708812 Hydrogen gas separator fixing structure and hydrogen gas separating device using the same Masayuki Shinkai 2010-05-04
7559979 Hydrogen separator and method for production thereof Ken Noda 2009-07-14
7470483 Electrolyte membrane-electrode assembly for fuel cell and operation method of fuel cell using the same Akihiko Yoshida, Yoshihiro Hori, Makoto Uchida, Eiichi Yasumoto, Shinya Kosako 2008-12-30
7455703 Method for manufacturing polymer electrolyte fuel cell Makoto Uchida, Yasushi Sugawara, Eiichi Yasumoto, Akihiko Yoshida, Junji Morita +3 more 2008-11-25
7422811 Fuel cell life predicting device and fuel cell system Eiichi Yasumoto, Shinichi Arisaka, Hideo Kasahara, Shigeyuki Unoki 2008-09-09
7339192 Function line and transistor array using the same Hirohiko Nishiki, Akitsugu Hatano 2008-03-04
7314360 Stretch rod extending device and bottom mold lifting device for stretch blow molding machine Hideaki Koda, Sentaro Kobayashi, Motohiro Matsuzawa 2008-01-01
7201993 Polymer electrolyte fuel cell Makoto Uchida, Yasushi Sugawara, Eiichi Yasumoto, Akihiko Yoshida, Junji Morita +3 more 2007-04-10
7150934 Electrolyte film electrode union, fuel cell containing the same and process for producing them Akihiko Yoshida, Yoshihiro Hori, Makoto Uchida, Eiichi Yasumoto, Yasuo Takebe +5 more 2006-12-19
7145612 Display device comprising plasma discharge switching element with three electrodes Masaya Okamoto 2006-12-05
7144645 Operation method for polymer electrolyte fuel cell Kazuhito Hatoh, Hideo Ohara, Junji Niikura, Hisaaki Gyoten, Toshihiro Matsumoto +1 more 2006-12-05
7132187 Polymer electrolyte fuel cell and production method thereof Yasushi Sugawara, Makoto Uchida, Yoshihiro Hori, Akihiko Yoshida, Takeshi Yonamine +2 more 2006-11-07
7097932 Polymer electrolytic fuel cell and method for producing the same Hisaaki Gyoten, Hiroki Kusakabe, Eiichi Yasumoto, Yasushi Sugawara, Teruhisa Kanbara +3 more 2006-08-29
7090705 Electronic device, production method thereof, and plasma process apparatus Atsushi Miyazaki, Akitsugu Hatano 2006-08-15
7060384 Polymer electrolyte fuel cell Akihiko Yoshida, Masao Yamamoto, Junji Niikura, Yasuo Takebe, Makoto Uchida 2006-06-13
RE39064 Electronic device manufacturing apparatus and method for manufacturing electronic device Katsuhiko Nomoto 2006-04-18
7005397 Electrode for polymer electrolyte fuel cell and method of producing the same Yoshihiro Hori, Takeshi Yonamine, Makoto Uchida 2006-02-28
7005205 Polymer electrolyte fuel cell Hisaaki Gyoten, Kazuhito Hatoh, Junji Niikura, Hideo Ohara, Kazufumi Nishida 2006-02-28
6991870 Gas diffusion electrode and fuel cell using this Eiichi Yasumoto, Akihiko Yoshida, Makoto Uchida, Junji Morita, Yasushi Sugawara +3 more 2006-01-31
6916869 Acrylic resin plastisol coating compound Hirofumi ETO, Akihiro Higuchi, Ayumi Takata, Yutaka Ohashi 2005-07-12
6881510 Method for resorting characteristics of polymer electrolyte fuel cell Hisaaki Gyoten, Teruhisa Kanbara, Makoto Uchida, Kazuhito Hatoh 2005-04-19
6875952 Substrate having repaired metallic pattern and method and device for repairing metallic pattern on substrate Keiji Takagi 2005-04-05
6830840 Operation method for polymer electrolytic fuel cell Kazuhito Hatoh, Hideo Ohara, Junji Niikura, Hisaaki Gyoten, Toshihiro Matsumoto +1 more 2004-12-14
6818339 Polymer electrolyte type fuel cell Yasushi Sugawara, Hisaaki Gyoten, Makoto Uchida, Eiichi Yasumoto, Teruhisa Kanbara +6 more 2004-11-16
6779482 Plasma deposition device for forming thin film Satoshi Okamoto, Toshio Akai 2004-08-24