FI

Fumio Ishikawa

SO Sony: 8 patents #5,352 of 25,231Top 25%
HC Hitachi Chemical Company: 2 patents #701 of 1,946Top 40%
SC Sekisui Chemical Co.: 2 patents #358 of 908Top 40%
FC Fuji Kiko Co.: 1 patents #99 of 208Top 50%
Mitsubishi Electric: 1 patents #15,491 of 25,717Top 65%
Overall (All Time): #357,478 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5959293 Defective portion detecting device with a horizontal synchronized signal 1999-09-28
5841326 Integrated oscillation circuit used for frequency conversion circuit Shinichi Kitazono, Shinichi Tsutsumi, Naoyasu Gamou 1998-11-24
5678895 Reclining device for seat Hiroshi Matsuura 1997-10-21
5591596 Process for preparing a purified treponemal antigen and use thereof Kouhei Nagahara, Mie Matsumoto 1997-01-07
5525937 Frequency conversion circuit with UHF/VHF common PLL buffer Shinchi Kitazono, Shinichi Tsutsumi, Naoyasu Gamou 1996-06-11
5474900 Process for preparing purified syphilis antigen from Treponema palljdum Kouhei Nagahara, Mie Matsumoto 1995-12-12
5223487 Peptides as antiallergic agents Keiichi Noguchi, Noriya Ohta, Daisuke Irie, Katsurou Matsuo, Kouhei Hirano +1 more 1993-06-29
5140175 Light-emitting diode drive circuit with fast rise time and fall time Keiji Yagi, Kazuhiro Zenba, Yukihiro Sekiguchi, Tetsuo Yamamoto, Takayuki Aoki 1992-08-18
5124594 Digital phase comparator for use in a phase lock loop Hiroshi Numata, Tamotsu Kogo, Shinichi Kitazono, Akira Sato 1992-06-23
5118669 Peptides and intermediates therefor useful as antiallergic agents, vasodilators and immunoregulators Keiichi Noguchi, Noriya Ohta, Daisuke Irie, Katsurou Matsuo, Kouhei Hirano +1 more 1992-06-02
5079525 Audio-video modulator system on IC chip Nobuyuki Ishikawa, Hiroshi Higuchi, Hisaaki Narahara, Shinichi Tanabe 1992-01-07
4645946 Two phase trapezoidal signal generating circuit Kuninobu Tanaka 1987-02-24
4612464 High speed buffer circuit particularly suited for use in sample and hold circuits Kuninobu Tanaka 1986-09-16
4540902 Sample and hold circuit 1985-09-10