HO

Hiroo Okamoto

HI Hitachi: 108 patents #25 of 28,497Top 1%
HC Hitachi Consumer Electronics Co.: 12 patents #7 of 447Top 2%
MA Maxell: 10 patents #58 of 437Top 15%
HM Hitachi Maxell: 6 patents #147 of 1,211Top 15%
Pioneer Electronic: 5 patents #387 of 1,840Top 25%
HA Hitachi America: 4 patents #17 of 97Top 20%
Samsung: 1 patents #49,284 of 75,807Top 70%
FA Fipa Frohwitter Intellectual Property Ag: 1 patents #5 of 18Top 30%
Overall (All Time): #7,218 of 4,157,543Top 1%
139
Patents All Time

Issued Patents All Time

Showing 126–139 of 139 patents

Patent #TitleCo-InventorsDate
4758907 Method and apparatus for recording and/or reproducing PCM signals Masaharu Kobayashi, Takaharu Noguchi 1988-07-19
4746900 Signal processing circuit Toshifumi Shibuya, Hiroshi Endoh, Yoshimi Iso, Takao Arai 1988-05-24
4704640 Method and apparatus for recording PCM signal Masaharu Kobayashi 1987-11-03
4682152 Digital data companding Takao Arai, Takashi Hoshino 1987-07-21
4682332 Method and apparatus for recording digital signals Masaharu Kobayashi, Takaharu Noguchi, Takao Arai 1987-07-21
4677622 Error correction method and system Masaharu Kobayashi, Keizo Nishimura, Takaharu Noguchi, Takao Arai, Toshifumi Shibuya 1987-06-30
4660200 Method and apparatus for processing an error flag of a PCM signal Masaharu Kobayashi 1987-04-21
4649542 Digital signal transmission method providing high error correction capability Keizo Nishimura, Masaharu Kobayashi, Takaharu Noguchi, Takao Arai, Toshifumi Shibuya 1987-03-10
4646170 Method and apparatus for recording and reproducing a digital signal with a stationary head Masaharu Kobayashi, Takao Arai 1987-02-24
4646301 Decoding method and system for doubly-encoded Reed-Solomon codes Masaharu Kobayashi, Hiroyuki Kimura, Takaharu Noguchi, Takao Arai 1987-02-24
4622600 Rotary-head type PCM data recording/reproducing method and apparatus with a redundancy-reduced control data format Masaharu Kobayashi, Takaharu Noguchi, Takao Arai 1986-11-11
4590524 Multitrack PCM reproducing apparatus Masaharu Kobayashi, Takashi Hoshino, Masami Nishida 1986-05-20
4583074 Expansion circuit for digital signals Tsutomu Noda, Takao Arai 1986-04-15
4233596 Flare monitoring apparatus Shunsaku Nakauchi 1980-11-11