Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5213618 | Method for the preparation of chromatic-color metal flake pigments | Thoru Souma, Masahiro Ishidoya, Toshihiko Nakamichi | 1993-05-25 |
| 5091010 | Chromatic-color metal flake pigment and colored composition compounded therewith | Thoru Souma, Masahiro Ishidoya, Toshihiko Nakamichi | 1992-02-25 |