SO

Sadaharu Oka

YE Yokogawa Electric: 16 patents #18 of 1,441Top 2%
Overall (All Time): #300,870 of 4,157,543Top 8%
16
Patents All Time

Issued Patents All Time

Showing 1–16 of 16 patents

Patent #TitleCo-InventorsDate
7787777 Optical packet network system Shinji Iio, Masayuki Suehiro, Katsuya Ikezawa, Akira Miura, Chie Sato +7 more 2010-08-31
7746549 Optical communication apparatus Naoaki Machida, Shinji Iio, Morio Wada, Daisuke Hayashi, Shinji Kobayashi +7 more 2010-06-29
7732807 Integrated circuit Akira Miura, Shinji Kobayashi, Hitoshi Hara, Tsuyoshi Yakihara 2010-06-08
7667544 Clock reproducing apparatus Hiroshi Sugawara, Toshimichi Suzuki, Shigeo Uneme, Shinji Iio, Akira Miura +5 more 2010-02-23
7620284 Optical waveform shaping device including portions for respectively absorbing and amplifying transmitted optical signal Shinji Iio, Machio Dobashi, Chie Sato, Morio Wada, Katsuya Ikezawa +3 more 2009-11-17
7362929 Optical switch Shinji Iio, Masayuki Suehiro, Shinichi Nakajima, Yoshiyuki Asano, Chie Sato +6 more 2008-04-22
7317848 Optical switch Shinji Iio, Masayuki Suehiro, Shin Nakajima, Yoshiyuki Asano, Chie Sato +3 more 2008-01-08
7307432 Electron beam generating apparatus and optical sampling apparatus using the same Kentaro Tezuka, Tsuyoshi Yakihara, Shinji Kobayashi, Akira Miura 2007-12-11
7176437 Photoelectric conversion apparatus and photoelectric conversion system using the same Morio Wada, Akira Miura, Tsuyoshi Yakihara, Chie Sato, Katsuya Ikezawa +3 more 2007-02-13
7116856 Optical switch matrix Shinji Iio, Masayuki Suehiro, Shin Nakajima, Yoshiyuki Asano, Chie Sato +3 more 2006-10-03
7113665 Optical router Chie Sato, Shinji Iio, Shinji Kobayashi, Tsuyoshi Yakihara, Akira Miura 2006-09-26
7035490 Active diffraction grating Shun MIYAZAKI, Akira Miura, Shinji Kobayashi, Morio Wada, Tsuyoshi Yakihara +3 more 2006-04-25
6930623 Optical signal processing system Shinji Iio, Masayuki Suehiro, Shin Nakajima, Yoshiyuki Asano, Hiroyuki Matsuura +4 more 2005-08-16
6891986 Optical switch Shinji Iio, Masayuki Suehiro, Shin Nakajima, Yoshiyuki Asano, Akira Miura +7 more 2005-05-10
6552325 Photo diode array Makoto Komiyama, Yoshihito Sanpei, Akira Miura, Katsutoshi Sakakibara, Tsuyoshi Yakihara +3 more 2003-04-22
5132557 Sampling head Satoru Uchida, Tsuyoshi Takihara, Akira Miura, Shinji Kobayashi, Hiromi Kamata 1992-07-21