AT

Akihiro Tozaki

Pioneer Electronic: 55 patents #7 of 1,840Top 1%
Pioneer: 11 patents #127 of 1,730Top 8%
Sharp Kabushiki Kaisha: 6 patents #2,623 of 10,731Top 25%
HI Hitachi: 3 patents #10,712 of 28,497Top 40%
SC Sanyo Electric Co.: 3 patents #1,910 of 6,347Top 35%
VJ Victor Company Of Japan: 3 patents #389 of 1,489Top 30%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
Overall (All Time): #32,105 of 4,157,543Top 1%
67
Patents All Time

Issued Patents All Time

Showing 51–67 of 67 patents

Patent #TitleCo-InventorsDate
6067282 Information recording medium, apparatus for recording the same and apparatus for recording the same Yoshiaki Moriyama, Takao Sawabe, Ryuichiro Yoshimura, Kaoru Yamamoto, Junichi Yoshio +4 more 2000-05-23
6034942 Information record medium, apparatus for recording the same and apparatus for reproducing the same Junichi Yoshio, Kyota Funamoto, Takao Sawabe, Ryuichiro Yoshimura, Yoshiaki Moriyama +1 more 2000-03-07
6031962 Information record medium, apparatus for recording the same and apparatus for reproducing the same Takao Sawabe, Ryuichiro Yoshimura, Junichi Yoshio, Yoshiaki Moriyama, Kaoru Yamamoto 2000-02-29
6006004 Information record medium, apparatus for recording the same and apparatus for reproducing the same Yoshiaki Moriyama, Ryuichiro Yoshimura, Takao Sawabe, Junichi Yoshio, Kaoru Yamamoto 1999-12-21
5966352 Information recording medium with interleaved data, apparatus for recording same and apparatus for reproducing same Takao Sawabe, Ryuichiro Yoshimura, Junichi Yoshio, Yoshiaki Moriyama, Kaoru Yamamoto 1999-10-12
5960152 Information record medium, apparatus for recording the same and apparatus for reproducing the same Takao Sawabe, Tokihiro Takahashi, Junichi Yoshio, Hidehiro Ishii, Hiroshi Nakamura +1 more 1999-09-28
5936925 Information record medium, apparatus for recording the same and apparatus for reproducing the same Junichi Yoshio, Kyota Funamoto, Takao Sawabe, Ryuichiro Yoshimura, Yoshiaki Moriyama +1 more 1999-08-10
5933569 Information recording medium apparatus for recording the same and apparatus for reproducing the same Takao Sawabe, Ryuichiro Yoshimura, Yoshiaki Moriyama, Kaoru Yamamoto, Junichi Yoshio 1999-08-03
5892983 Method of and apparatus for recording information on record medium and apparatus for reproducing the same Hiroshi Nakamura 1999-04-06
5889746 Information recording medium, apparatus for recording the same and apparatus for reproducing the same Yoshiaki Moriyama, Takao Sawabe, Ryuichiro Yoshimura, Kaoru Yamamoto, Junichi Yoshio +4 more 1999-03-30
5886965 Information recording apparatus, information recording medium, and information reproduction apparatus using contents information signal Takao Sawabe 1999-03-23
5787222 Information recording apparatus and information reproducing apparatus Hiroshi Nakamura, Junichi Yoshio 1998-07-28
5758008 Information recording apparatus and information reproducing apparatus Hiroshi Nakamura 1998-05-26
5742569 Information record medium, apparatus for recording the same and apparatus for reproducing the same Kaoru Yamamoto, Hirohide Kobori, Takao Sawabe, Junichi Yoshio, Ryuichiro Yoshimura +1 more 1998-04-21
5729516 Information recording medium, apparatus for recording the same and apparatus for reproducing the same Takao Sawabe, Ryuichiro Yoshimura, Yoshiaki Moriyama, Kaoru Yamamoto, Junichi Yoshio 1998-03-17
5283659 Apparatus and method of high vision signal recording using expansion techniques and digital drop-out compensation Toru Akiyama, Yoshiyuki Okuda, Motooki Sugihara 1994-02-01
5179453 Recording medium playback apparatus including a variable compensation circuit 1993-01-12