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 26–50 of 67 patents

Patent #TitleCo-InventorsDate
6597861 Information record medium, apparatus for recording the same and apparatus for reproducing the same Hidehiro Ishii, Tokihiro Takahashi, Hiroshi Nakamura, Takao Sawabe, Kaoru Yamamoto +1 more 2003-07-22
6577589 Information recording medium, information recording apparatus and information reproducing apparatus Takao Sawabe, Kaoru Yamamoto 2003-06-10
6571055 Compressed audio information recording medium, compressed audio information recording apparatus and compressed audio information reproducing apparatus Takao Sawabe, Kaoru Yamamoto 2003-05-27
6567612 Information record medium, apparatus for recording the same and apparatus for reproducing the same Junichi Yoshio, Ryuichiro Yoshimura, Takao Sawabe, Yoshiaki Moriyama, Kaoru Yamamoto 2003-05-20
6567409 Data stream converting apparatus Masao Higuchi, Seiji Harada 2003-05-20
6501903 Information record medium, apparatus for recording the same and apparatus for reproducing the same Ryuichiro Yoshimura, Takao Sawabe, Yoshiaki Moriyama, Kaoru Yamamoto, Hisayuki Nakayama +1 more 2002-12-31
6445873 Digital data recording/reproducing apparatus Tadashi Noguchi, Hidehiro Ishii 2002-09-03
6396997 INFORMATION RECORD MEDIUM WHEREIN NAVIGATION INFORMATION IS RECORDED, APPARATUS FOR RECORDING INFORMATION INCLUDING NAVIGATION INFORMATION AND APPARATUS FOR REPRODUCING INFORMATION ACCORDING TO NAVIGATION INFORMATION Yoshiaki Moriyama, Ryuichiro Yoshimura, Takao Sawabe, Junichi Yoshio, Kaoru Yamamoto 2002-05-28
6266478 Information record medium, apparatus for recording the same and apparatus for reproducing the same Junichi Yoshio, Ryuichiro Yoshimura, Takao Sawabe, Yoshiaki Moriyama, Kaoru Yamamoto 2001-07-24
6253018 Information record medium, apparatus for recording the same and apparatus for reproducing the same Yoshiaki Moriyama, Ryuichiro Yoshimura, Takao Sawabe, Junichi Yoshio, Kaoru Yamamoto 2001-06-26
6236804 Information record medium, apparatus for recording the same and apparatus for reproducing the same Tokihiro Takahashi, Hidehiro Ishii, Junichi Yoshio, Hiroshi Nakamura, Takao Sawabe +2 more 2001-05-22
6215952 Information record medium, apparatus for recording the same and apparatus for reproducing the same Junichi Yoshio, Ryuichiro Yoshimura, Takao Sawabe, Yoshiaki Moriyama, Kaoru Yamamoto +1 more 2001-04-10
6212330 Information record medium, apparatus for recording the same and apparatus for reproducing the same Kaoru Yamamoto, Ryuichiro Yoshimura, Takao Sawabe, Yoshiaki Moriyama, Junichi Yoshio 2001-04-03
6160951 Information recording medium and information reproducing apparatus Hiroshi Nakamura, Junichi Yoshio 2000-12-12
6157769 Information record medium, apparatus for recording the same and apparatus for reproducing the same Ryuichiro Yoshimura, Takao Sawabe, Yoshiaki Moriyama, Kaoru Yamamoto, Hisayuki Nakayama +1 more 2000-12-05
6148138 Information record medium, apparatus for recording the same and apparatus for reproducing the same Takao Sawabe, Ryuichiro Yoshimura, Yoshiaki Moriyama, Kaoru Yamamoto, Junichi Yoshio 2000-11-14
6137954 Information record medium, apparatus for recording the same and apparatus for reproducing the same Takao Sawabe, Ryuichiro Yoshimura, Junichi Yoshio, Yoshiaki Moriyama, Kaoru Yamamoto 2000-10-24
6122434 Information recording medium, having data and management portions, and an apparatus for reproducing information from the medium Takao Sawabe, Ryuichiro Yoshimura, Junichi Yoshio, Yoshiaki Moriyama, Kaoru Yamamoto 2000-09-19
6108281 Accessing control for optical recording device capable of performing time search Takao Sawabe, Ryuichiro Yoshimura, Yoshiaki Moriyama, Kaoru Yamamoto, Hiroshi Nakamura +1 more 2000-08-22
6108486 Information record medium, apparatus for recording the same and apparatus for reproducing the same enabling easy access to information Takao Sawabe, Tokihiro Takahashi, Junichi Yoshio, Hidehiro Ishii, Hiroshi Nakamura 2000-08-22
6104684 Information recording medium, with aggregate attribute information recorded in video manager apparatus for recording the same and apparatus for reproducing the same Yoshiaki Moriyama, Takao Sawabe, Kaoru Yamamoto, Ryuichiro Yoshimura, Junichi Yoshio 2000-08-15
6091674 Accessing control for optical recording device capable of performing time search Takao Sawabe, Ryuichiro Yoshimura, Yoshiaki Moriyama, Kaoru Yamamoto, Hiroshi Nakamura +1 more 2000-07-18
6088506 Information record medium, apparatus for recording the same and apparatus for reproducing the same Junichi Yoshio, Ryuichiro Yoshimura, Takao Sawabe, Yoshiaki Moriyama, Kaoru Yamamoto 2000-07-11
6085021 Information recording medium apparatus for recording the same and apparatus for reproducing the same Takao Sawabe, Kaoru Yamamoto, Ryuichiro Yoshimura, Yoshiaki Moriyama, Hiroshi Nakamura +1 more 2000-07-04
6085267 Method of and apparatus for recording information on record medium, and apparatus for reproducing the same Hiroshi Nakamura 2000-07-04