Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4997874 | Aqueous suspension and preparation method thereof | Makoto Asano, Masatoshi Takagi, Akihiro Yamaguchi, Keizaburo Yamaguchi, Yoshimitsu Tanabe +1 more | 1991-03-05 |
| 4931420 | Temperature history indicator and its manufacturing method | Makoto Asano, Haruki Tsutsumi, Eishi Tanaka, Yoshiro Fuseya, Hiroyuki Akahori | 1990-06-05 |
| 4760108 | Microcapsule-containing water-base coating formulation and copying and/or recording material making use of said coating formulation | Makoto Asano, Masatoshi Takagi, Takamine Yamaguchi | 1988-07-26 |
| 4735744 | Novel benzoquinone derivatives and production process thereof as well as use as color-developers suitable for recording materials | Michihiro Tsujimoto, Hiroyuki Akahori, Eishi Tanaka, Makoto Asano | 1988-04-05 |
| 4632987 | Process for the preparation of triarylmethane compounds | Michihiro Tsujimoto, Hiroyuki Akahori, Makoto Asano | 1986-12-30 |
| 4574110 | Process for producing microcapsules and microcapsule slurry | Makoto Asano, Yukio Tamura, Yoshihiro Oono | 1986-03-04 |
| 4561000 | Heat-sensitive recording unit | Michihiro Tsujimoto, Makoto Asano, Hiroyuki Akahori | 1985-12-24 |
| 4480002 | Dyestuff-containing microscopic capsule suspension for record materials | Makoto Asano, Hiroyuki Akahori, Michihiro Tsujimoto | 1984-10-30 |
| 4398753 | Pressure sensitive recording unit | Makoto Asano, Hiroyuki Akahori, Michihiro Tsujimoto | 1983-08-16 |
| 4384871 | Dyestuff-containing microscopic capsule dispersion for record materials | Makoto Asano, Hiroyuki Akahori, Michihiro Tsujimoto | 1983-05-24 |
| 4302396 | Chlorinated 4-methylphthalic anhydrides | Michihiro Tsujimoto, Tsutomu Nishizawa, Nobuyoshi Abe | 1981-11-24 |