Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5368962 | Masking film | Hiroshi Maruyama, Etsuko Minezaki, Yoshinori Watanabe | 1994-11-29 |
| 5318874 | O-naphthoquinone diazide photosensitive coating composition containing a polyvinyl pyrrolidone compound and a stannic halide | Shinichi Yamamoto, Masatoshi Tomiki, Akiko Yamazaki | 1994-06-07 |
| 5316843 | Matted film containing a matting agent consisting of an organic filler and an inorganic filler | Shinichi Yamamoto, Masatoshi Tomiki, Tatuhiko Higami | 1994-05-31 |
| 5043198 | Lightsafe masking film | Hiroshi Maruyama, Etsuko Minezaki | 1991-08-27 |
| 5009944 | Lightsafe masking film | Hiroshi Maruyama, Etsuko Minezaki, Susumu Tagashira, Hisashi Shimokawahara | 1991-04-23 |
| 4937116 | Lightsafe masking film | Kinichi Kizawa | 1990-06-26 |
| 4925713 | Lightsafe masking film | Kazutoshi Kimizuka, Etsuko Minezaki, Hiroshi Maruyama | 1990-05-15 |
| 4923727 | Lightsafe masking film | Hiroshi Maruyama, Etsuko Minezaki | 1990-05-08 |