HS

Hiroyuki Sugawara

HI Hitachi: 23 patents #1,433 of 28,497Top 6%
Sharp Kabushiki Kaisha: 4 patents #3,475 of 10,731Top 35%
SU Subaru: 4 patents #234 of 1,684Top 15%
HM Hitachi Via Mechanics: 4 patents #8 of 109Top 8%
GC Geomatec Co.: 4 patents #1 of 11Top 10%
VM Via Mechanics: 3 patents #2 of 34Top 6%
NC Nsk Steering & Control: 1 patents #1 of 10Top 10%
SE Seiko Epson: 1 patents #5,551 of 7,774Top 75%
TK Terumo Kabushiki Kaisha: 1 patents #888 of 1,558Top 60%
TF Tokyo University Of Science Foundation: 1 patents #82 of 252Top 35%
CK Calsonic Kansei: 1 patents #307 of 675Top 50%
SO Sony: 1 patents #17,262 of 25,231Top 70%
DC Daido Metal Company: 1 patents #166 of 280Top 60%
HC Hitachi Engineering Co.: 1 patents #187 of 572Top 35%
ND Ndc: 1 patents #10 of 32Top 35%
NE Nec: 1 patents #7,889 of 14,502Top 55%
Nsk: 1 patents #937 of 1,559Top 65%
Overall (All Time): #57,154 of 4,157,543Top 2%
48
Patents All Time

Issued Patents All Time

Showing 26–48 of 48 patents

Patent #TitleCo-InventorsDate
5117434 Metal vapor laser apparatus Tuneyoshi Oohashi, Motoo Yamaguchi, Akira Wada, Toshiharu Shirakura, Toshimichi Kichikawa 1992-05-26
5054029 Pulse power supply circuit Tuneyoshi Oohashi 1991-10-01
5038082 Vacuum switch apparatus Hiroshi Arita, Kouzi Suzuki, Yukio Kurosawa 1991-08-06
4991180 Metallic vapor laser apparatus Motoo Yamaguchi, Akira Wada, Toshiharu Shirakura, Tuneyoshi Oohashi, Toshimichi Kichikawa 1991-02-05
4949339 Multiplexer apparatus adaptable for two kinds of transmission rates Naohiro Shimada, Toshiyuki Nishina 1990-08-14
4818892 Laser device with high-voltage pulse generator, high-voltage pulse generator and pulse generating method Tuneyoshi Oohashi, Satoshi Takemori, Toshimichi Kichikawa, Kouji Kuwabara 1989-04-04
4740980 Gas laser device Toshiharu Shirakura, Shigeo Shiono, Minoru Suzuki, Humio Shibata 1988-04-26
4602372 Gas laser generator Kouji Sasaki, Kouji Kuwabara, Toshiharu Shirakura, Yukio Kawakubo, Satoshi Takemori 1986-07-22
4590599 Gas laser device Yukio Kawakubo, Kouji Kuwabara, Toshiharu Shirakura, Satoshi Takemori, Kouji Sasaki 1986-05-20
4541097 Gas laser device with plural electrode members on the upper gas flow side Kouji Kuwabara, Kouji Sasaki, Toshiharu Shirakura, Yukio Kawakubo, Satoshi Takemori 1985-09-10
4503357 Cathode-ray tube Koukichi Ouhata 1985-03-05
4500998 Gas laser Kouji Kuwabara, Toshiharu Shirakura, Yukio Kawakubo, Kouji Sasaki 1985-02-19
4474468 Method of and apparatus for measuring laser beam Toshiharu Shirakura, Kouji Kuwabara, Kouji Sasaki, Satoshi Takemori 1984-10-02
4468777 Mirror supporting frame for gas laser oscillation apparatus Satoshi Takemori, Kouji Kuwabara, Toshiharu Shirakura, Yukio Kawakubo, Kouji Sasaki 1984-08-28
4427857 Vacuum interrupter Nobuo Abe, Yukio Kurosawa, Akira Wada, Kiyoji Iwashita 1984-01-24
4391519 Axis-monitoring apparatus for a laser beam Kouji Kuwabara, Toshiharu Shirakura, Kouji Sasaki, Satoshi Takemori 1983-07-05
4351052 Coaxial type gas-flow laser device Kouji Sasaki, Kouji Kuwabara, Toshiharu Shirakura, Satoshi Takemori, Norio Ikemoto 1982-09-21
4331939 Gas laser device Kouji Kuwabara, Toshiharu Shirakura, Kouji Sasaki, Satoshi Takemori 1982-05-25
4287487 Gas laser generating device of the longitudinal gas flow type Kouji Kuwabara, Toshiharu Shirakura, Kouji Sasaki, Satoshi Takemori 1981-09-01
4229631 Vacuum-type circuit breaker Hideo Arakawa, Takashi Namekawa, Keiichi Kuniya 1980-10-21
4216513 D.C. Circuit breaker Shunji Tokuyama 1980-08-05
4210790 Vacuum-type circuit interrupter Yukio Kurosawa, Yukio Kawakubo 1980-07-01
4196327 Vacuum interrupter Yukio Kurosawa, Yukio Kawakubo 1980-04-01