OF

Osamu Fujiwara

SC Sanyo Electric Co.: 4 patents #1,493 of 6,347Top 25%
HI Hitachi: 2 patents #13,388 of 28,497Top 50%
Mitsubishi Electric: 2 patents #11,187 of 25,717Top 45%
HS Hitachi Seiko: 1 patents #36 of 106Top 35%
MD Mitsubisih Denki: 1 patents #26 of 381Top 7%
📍 Funabashi, JP: #161 of 1,104 inventorsTop 15%
Overall (All Time): #592,165 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
5103356 Magnetic tape recording and playback device interconnected by conductor patterns formed on a circuit board Kunihiko Nakagawa, Yoshinori Kakuta, Masami Tomita, Seiji Kishikawa, Tooru Yuri 1992-04-07
4730292 Device for sequentially feeding a plurality of disk-shaped recording media Kazuo Hasegawa 1988-03-08
4719157 Fuel cell stack assembly Masaru Tsutsumi, Hideo Hagino, Hitoshi Goto 1988-01-12
4670361 Manifold device for fuel cell system Masaru Tsutsumi, Hideo Hagino 1987-06-02
4670866 Recording medium disk continuous-driving apparatus Kazuo Hasegawa 1987-06-02
4642274 Fuel cell system Masaru Tsutsumi, Hideo Hagino, Hitoshi Goto 1987-02-10
4621033 Fuel cell system and its vibration-proof device Masaru Tsutsumi, Hideo Hagino 1986-11-04
4613943 Operation teaching method and apparatus for industrial robot Norihisa Miyake, Akira Tsuchihashi, Yasuhiro Hashimoto, Yutaka Maruyama 1986-09-23
4242620 Automatic welding line tracing method and apparatus Takeshi Araya, Tsugio Udagawa 1980-12-30