RI

Ren Ishikawa

FU Fujifilm: 15 patents #581 of 4,519Top 15%
Fujitsu Limited: 2 patents #10,930 of 24,456Top 45%
Overall (All Time): #265,834 of 4,157,543Top 7%
17
Patents All Time

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #TitleCo-InventorsDate
12374363 Magnetic tape device and method of operating magnetic tape device 2025-07-29
12112770 Magnetic tape cartridge, magnetic tape drive, tension control method, method of handling magnetic tape, and program Keisuke Koike 2024-10-08
12014756 Tape reel, magnetic tape cartridge, and magnetic tape drive 2024-06-18
8177158 Reel and recording tape cartridge 2012-05-15
8123158 Reel and recording tape cartridge Yosuke Sumiya, Shigeru Nishiyama, Kazuo Hiraguchi 2012-02-28
7954750 Reel and recording tape cartridge Yosuke Sumiya, Shigeru Nishiyama 2011-06-07
7913946 Insert body, reel, and recording tape cartridge Kazuo Hiraguchi, Yasuhiro Mori 2011-03-29
7881013 Recording tape cartridge Minoru Sueki 2011-02-01
7644886 Reel 2010-01-12
7562842 Reel 2009-07-21
7523887 Reel and recording tape cartridge 2009-04-28
7347397 Reel and recording tape cartridge Teruo Ashikawa 2008-03-25
7293650 Tape cassette storage case having a bumper portion 2007-11-13
7232088 Reel and recording tape cartridge Katsuki Asano, Seiji Tsuyuki 2007-06-19
7201341 Recording tape cartridge Katsuki Asano 2007-04-10
7066421 Recording tape cartridge 2006-06-27
6992861 Head suspension for swing arm actuator Atsushi Suzuki, Ryosuke Koishi, Daisuke Mizutani, Masashi Takada, Yasuhiro Yoneda 2006-01-31