MO

Masao Obara

HI Hitachi: 9 patents #4,653 of 28,497Top 20%
HC Hitachi Media Electronics Co.: 4 patents #51 of 214Top 25%
HC Hitachi Mizusawa Electronics Co.: 2 patents #4 of 28Top 15%
KT Kabushiki Kaisha Toshiba: 2 patents #9,982 of 21,451Top 50%
Overall (All Time): #473,207 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
6166484 Deflection yoke, cathode-ray tube device using the same and display device Nobutaka Okuyama, Kouji Fukuyama, Soichi Sakurai, Hiroshi Yoshioka, Misao Ikeda +1 more 2000-12-26
5907214 Deflection yoke with coils for reducing unwanted magnetic field radiation Takanori Yukimatsu, Soichi Sakurai, Hiroshi Jitsukata, Yoshio Satoh, Hiroshi Yoshioka 1999-05-25
5701061 Cathode-ray tube apparatus and yoke Nobutaka Okuyama, Soichi Sakurai, Kouji Kitou, Hiroki Oguro, Isao Yoshimi +5 more 1997-12-23
5668447 Deflection yoke and cathode-ray tube apparatus comprising the same Nobutaka Okuyama, Soichi Sakurai, Kooji Fukuma, Hiroshi Yoshioka, Naoki Ito +2 more 1997-09-16
5548190 Deflection yoke and cathode-ray tube apparatus comprising the same Nobutaka Okuyama, Soichi Sakurai, Kooji Fukuma, Hiroshi Yoshioka, Naoki Ito +2 more 1996-08-20
5523594 Heterojunction bipolar transistor 1996-06-04
5475287 Cathode-ray tube apparatus and yoke Nobutaka Okuyama, Soichi Sakurai, Kouji Kitou, Hiroki Oguro, Isao Yoshimi +5 more 1995-12-12
5332912 Heterojunction bipolar transistor Tetsuro Nozu, Norio Iizuka, Junko Akagi, Torakiti Kobayashi 1994-07-26
5070280 Deflection yoke Nobutaka Okuyama, Soichi Sakurai, Kouji Kitou, Michitaka Ohsawa, Ichiro Niitsu +3 more 1991-12-03
5049847 Deflection yoke with auxiliary coils for stray line radiation suppression Nobutaka Okuyama, Soichi Sakurai, Yosio Kikkawa, Michitaka Ohsawa 1991-09-17
4737692 Pincushion distortion correction device Nobutaka Okuyama, Toshiharu Shimizu, Kunio Ando, Hitoshi Maekawa, Hiroki Ooguro 1988-04-12