TO

Takashi Ohgi

SO Sony: 11 patents #4,043 of 25,231Top 20%
DE Dexerials: 1 patents #248 of 387Top 65%
Overall (All Time): #464,623 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
8709569 Optical recording medium, and method for producing optical recording medium Minoru Kikuchi, Hiroyuki Kawasaki, Yoshiaki Nakata 2014-04-29
7533397 Disc cartridge 2009-05-12
7526783 Disk cartridge Takahiro Yamada, Kazuhito Kurita, Tokio Kanada, Toru Morikawa 2009-04-28
7512961 Disk cartridge, and recording and/or reproducing device 2009-03-31
7506348 Disc cartridge, and disc recording and/or reproducing device using the same 2009-03-17
7484232 Disc cartridge, and method of installing shutter to same 2009-01-27
7383559 Disc cartridge of reduced size 2008-06-03
7343612 Disc cartridge 2008-03-11
6005754 Recording/reproducing cassette equipped with identification substrate 1999-12-21
5657936 Tape reel position restricting assembly for tape cassette Osamu Taguchi 1997-08-19
5638239 Tape cassette having a plurality of detection holes for use with a recording/reproducing device having a dection pin located in one of a plurality of positions 1997-06-10