MS

Masaaki Sakaguchi

Fujitsu Limited: 27 patents #902 of 24,456Top 4%
MM Mitsubishi Materials: 12 patents #58 of 1,543Top 4%
MM Mitsubishi Mining: 2 patents #467 of 2,247Top 25%
FC Fuji Electric Co.: 2 patents #952 of 2,643Top 40%
OC Okuno Chemical Industries Co.: 2 patents #8 of 77Top 15%
HH Hitachi High-Technologies: 1 patents #674 of 1,200Top 60%
FC Fuji Electric Imaging Device Co.: 1 patents #14 of 34Top 45%
Overall (All Time): #64,917 of 4,157,543Top 2%
45
Patents All Time

Issued Patents All Time

Showing 26–45 of 45 patents

Patent #TitleCo-InventorsDate
5015430 Method for manufacturing magnetic tape Akihiro Suzuki 1991-05-14
4988204 Joint inspection apparatus Kazuo Kubota, Fusao Ichikawa 1991-01-29
4932600 Method for winding magnetic tape Mitsunobu Usui 1990-06-12
4909455 Method and device for winding magnetic tape using magnetic alignment Kazuo Kubota, Keisuke Wakatsuki, Mitsunobu Usui 1990-03-20
4897540 Apparatus for detecting the presence or absence of overlap at tape joints Kazuo Kubota 1990-01-30
4870291 Splice inspection method and apparatus using light inclined at a prescribed angle Youichi Hayashi, Kazuo Kubota 1989-09-26
4867388 Magnetic tape winding device Mitsunobu Usui 1989-09-19
4863110 Magnetic tape winding method and apparatus Akihisa Kita, Keisuke Wakatsuki 1989-09-05
4846420 Magnetic tape loading method and apparatus Mitsunobu Usui 1989-07-11
4844370 Method and device for winding magnetic tape using magnetic alignment Mitsunobu Usui, Hiroshi Chikamasa, Keisuke Wakatsuki, Seiji Kiuchi 1989-07-04
4842210 Method and device for winding magnetic tape using magnetic alignment Kazuo Kubota 1989-06-27
4838496 Magnetic tape loading method and apparatus Kazuo Kubota 1989-06-13
4828197 Method and device for winding magnetic tape using magnetic alignment Keisuke Wakatsuki 1989-05-09
4828196 Device for winding magnetic tape using magnetic alignment Seiji Kiuchi 1989-05-09
4817884 Method and device for winding magnetic tape using magnetic alignment Mitsunobu Usui, Akira Takagi 1989-04-04
4796824 Device for winding magnetic tape using magnetic alignment Hiroshi Chikamasa, Akira Takagi 1989-01-10
4789110 Method and device for winding magnetic tape using magnetic alignment Kazuo Kubota 1988-12-06
4783020 Magnetic tape winding device using magnetic edge alignment Kazuo Kubota 1988-11-08
4679744 Magnetic tape winding method and system Hiroshi Chikamasa 1987-07-14
4478376 Method of winding magnetic recording tape Shinichi Satoh, Seiji Kiuchi, Hiroshi Chikamasa 1984-10-23