YT

Yoshihisa Takayama

SO Sony: 73 patents #230 of 25,231Top 1%
Fujitsu Limited: 5 patents #6,029 of 24,456Top 25%
NC Nippon Electric Glass Co.: 4 patents #101 of 437Top 25%
Overall (All Time): #21,139 of 4,157,543Top 1%
83
Patents All Time

Issued Patents All Time

Showing 51–75 of 83 patents

Patent #TitleCo-InventorsDate
6643086 Tape driving apparatus Takao Hiramoto, Tatsuya Kato, Kazuyuki Hirooka, Kenichiro Kikukawa 2003-11-04
6624961 Tape drive apparatus and recording medium 2003-09-23
6624959 Tape driving apparatus and recording medium 2003-09-23
6621650 Recording medium and tape driving apparatus 2003-09-16
6614610 Tape drive unit and recording medium 2003-09-02
6611394 Recording medium, tape drive, and method for identifying type of recording medium Tatsuya Kato, Katsumi Ikeda, Osamu Nakamura, Yasuaki Kano, Katsumi Maekawa 2003-08-26
6603626 Tape driving apparatus and recording medium 2003-08-05
6603624 Tape drive unit and recording medium 2003-08-05
6583955 Tape cassette having first and second write inhibit mechanisms Yasuaki Kano, Joichi Daiba, Takao Hiramoto 2003-06-24
6580576 Tape driving apparatus and recording medium 2003-06-17
6570729 Recording medium and tape drive apparatus that calculates available partition recording area using maximum frame number information stored in a memory-in-cassette 2003-05-27
6535344 Tape drive unit and recording medium 2003-03-18
6519105 Recording medium and tape drive device 2003-02-11
6505788 Tape cassette Yoshitsugu Taki, Takao Hiramoto 2003-01-14
6501612 Recording medium and tape drive suitable for the same Tatsuya Kato, Katsumi Ikeda 2002-12-31
6493166 Tape cassette and tape recording and/or reproducing apparatus 2002-12-10
6490132 Tape cassette having first and second write inhibit mechanisms for cassette type discrimination Yasuaki Kano, Joichi Daiba, Takao Hiramoto 2002-12-03
6433953 Recording/reproducing apparatus Yoshitsugu Taki, Takao Hiramoto 2002-08-13
6425042 Tape drive apparatus for judging an operational mode of the tape based on detected tape management information Katsumi Ikeda, Masaki Yoshida, Hideto Suzuki, Tatsuya Kato, Osamu Nakamura +1 more 2002-07-23
6421196 Method and apparatus for controlling recording medium Kazuyuki Hirooka 2002-07-16
6307700 Tape recording and/or reproducing apparatus and tape ejecting method 2001-10-23
6301067 Tape cassette and a tape recording apparatus 2001-10-09
6195007 Recording medium handling apparatus Susumu Kusakabe 2001-02-27
6134066 Recording and reproducing apparatus using tape cassette for updating attribute information in write protect mode Takao Hiramoto, Satoshi Oota 2000-10-17
6088182 Recording medium cartridge recording/reproducing apparatus using a recording medium cartridge and information management system Yoshitsugu Taki, Hitoshi Rikukawa, Toshiya Kurokawa, Masahiro Kodama, Takao Hiramoto 2000-07-11