CM

Chiyoko Matsumi

Sumitomo Electric Industries: 48 patents #173 of 21,551Top 1%
Microsoft: 12 patents #3,498 of 40,388Top 9%
📍 Suita, JP: #12 of 1,253 inventorsTop 1%
Overall (All Time): #54,779 of 4,157,543Top 2%
50
Patents All Time

Issued Patents All Time

Showing 26–50 of 50 patents

Patent #TitleCo-InventorsDate
6115537 Digital signal recording and reproducing apparatus Masazumi Yamada, Yukio Kurano, Kenji Kunitake, Yuzo Murakami, Akira Iketani +2 more 2000-09-05
6049770 Video and voice signal processing apparatus and sound signal processing apparatus Junji Yoshida, Akira Iketani, Tatsuro Juri 2000-04-11
6038094 Digital data recording device having a rotary cylinder Ichiro Arimura, Akira Iketani, Masazumi Yamada, Tatsuro Juri, Yukio Kurano +2 more 2000-03-14
6031959 Television signal recording and reproducing apparatus Shinji Hamai, Masazumi Yamada, Tatsuro Juri, Masakazu Nishino, Shiro Kato +1 more 2000-02-29
5959796 Method of transmitting digital video and audio signals between bit rate reduction encoded signal recording and reproducing systems Takahiro Nakamura, Susumu Yamaguchi, Hideki Ohtaka, Ryouichi Hoshiai, Masakazu Nishino 1999-09-28
5856890 Digital data recording and reproducing apparatus with reliable error correcting coding and decoding Shinji Hamai, Akira Iketani 1999-01-05
5787221 Digital signal recording apparatus Tatsuro Juri, Akira Iketani, Makoto Goto, Susumu Yamaguchi, Hideki Otaka +4 more 1998-07-28
5655050 Apparatus and method for recording and reproducing digital signal in synchronization blocks Yoshiki Yamamoto, Tetsuya Mizushima, Akira Iketani, Yasunori Kawakami 1997-08-05
5638227 Digital data recording and reproducing apparatus Shinji Hamai, Akira Iketani 1997-06-10
5621578 Method of transmitting digital video and audio signals between bit rate reduction encoded signal recording and reproducing systems Takahiro Nakamura, Susumu Yamaguchi, Hideki Ohtaka, Ryouichi Hoshiai, Masakazu Nishino 1997-04-15
5617263 Method of and apparatus for recording data suitable for a digital recording in a multiplexed fashion Tetsuya Mizushima, Tatsuro Juri, Kazuo Kawakami 1997-04-01
5594550 Digital signal recording apparatus for recording digital data comprising a plurality of recording blocks Tatsuro Juri, Akira Iketani 1997-01-14
5543937 Apparatus for recording and playing back digital data Shinji Hamai, Akira Iketani, Tatsuro Juri, Masazumi Yamada, Yasunori Kawakami +1 more 1996-08-06
5486930 Apparatus for recording and reproducing a video signal using a digital video cassette recorder Akira Iketani, Susumu Ikeda, Susumu Yamaguchi, Takayasu Yoshida 1996-01-23
5479299 Method of transmitting digital video and audio signals between bit rate reduction encoded signal recording and reproducing systems Takahiro Nakamura, Susumu Yamaguchi, Hideki Ohtaka, Ryouichi Hoshiai, Masakazu Nishino 1995-12-26
5446597 Apparatus for recording digital signals with associated auxiliary data Tatsuro Juri, Akira Iketani, Shinji Hamai 1995-08-29
5440706 Data shuffling apparatus possessing reduced memory Tatsuro Juri, Takao Kashiro 1995-08-08
5416600 Concealing method of video signal Tatsuro Juri 1995-05-16
5394275 Apparatus for selectively recording and reproducing two video signals having different amounts of data in each frame Akira Iketani, Tatsuro Juri 1995-02-28
5323244 Recording and reproducing apparatus Susumu Yamaguchi 1994-06-21
5317457 Digital signal recording method Akira Iketani, Akifumi Ide, Tatsuro Juri 1994-05-31
5311372 Method of recording digital signals in an interleaving array form with enhanced error interpolation Susumu Yamaguchi, Akira Iketani, Tatsuro Juri 1994-05-10
5278706 Digital video signal recording/reproducing apparatus Akira Iketani, Chojuro Yamamitsu, Akifumi Ide, Masakazu Nishino, Tatsuro Juri +1 more 1994-01-11
5257141 Method of recording a digital video signal Tatsuro Juri 1993-10-26
5193010 Digital video signal recording and reproducing apparatus having an error concealment control function Tatsuro Juri, Shinya Kadono, Hideki Ohtaka 1993-03-09