Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6872044 | Apparatus for and method of manufacturing sheets | — | 2005-03-29 |
| 6612100 | Sheet package production system | Hideyuki Morimoto, Hirokazu Kawai, Yuji Okabe, Yasushi Kikuchi, Takao Asakura | 2003-09-02 |
| 5149005 | Magnetic tape wind-up method | Akira Takagi, Akihisa Kita, Shingo Sawahara | 1992-09-22 |
| 4876007 | Plate-type filter cartridge with internal support | Kyoichi Naruo, Sumio Ohtani, Masahiro Etoh, Ikuro Moriya, Masanori Ishiguro +1 more | 1989-10-24 |
| 4841403 | Lid spring locking structure in a magnetic tape cassette | Seiji Kiuchi, Akira Honjyoh, Kengo Oishi, Osamu Suzuki | 1989-06-20 |
| 4650136 | Magnetic tape cassette | — | 1987-03-17 |
| 4607308 | Magnetic tape cassette with dual guard panel structure | Kengo Oishi, Osamu Suzuki | 1986-08-19 |
| 4220292 | Photography film spool | Shigemitsu Mizutani, Yasuo Matsumoto, Kengo ONO | 1980-09-02 |