TY

Tohru Yamanishi

NT NTT: 5 patents #1,080 of 4,871Top 25%
Sumitomo Electric Industries: 5 patents #5,365 of 21,551Top 25%
Overall (All Time): #1,053,812 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5661826 Transmission line switching apparatus Kazuhito Saito, Masayuki Nishimura, Hideo Kobayashi, Toshiaki Katagiri, Masao Tachikura 1997-08-26
5613021 Optical fiber switching device having one of a robot mechanism and an optical fiber length adjustment unit Kazuhito Saito, Masayuki Nishimura, Hideo Kobayashi, Toshiaki Katagiri, Masao Tachikura 1997-03-18
5581644 Transmission line switching apparatus Kazuhito Saito, Masayuki Nishimura, Hideo Kobayashi, Toshiaki Katagiri, Masao Tachikura 1996-12-03
5504825 Optical fiber switching device and method Kazuhito Saito, Masayuki Nishimura, Hideo Kobayashi, Toshiaki Katagiri, Masao Tachikura 1996-04-02
5386485 Optical fiber switching device having an optical fiber length adjustment unit and method for using the same Kazuhito Saito, Masayuki Nishimura, Hideo Kobayashi, Toshiaki Katagiri, Masao Tachikura 1995-01-31