Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6228816 | Aqueous cutting fluid, aqueous cutting agent, and process for cutting hard brittle materials with the same | Kenji Ito, Shunji Maemichi, Hutoshi Nakanishi, Masahiro Ishidoya, Takashi Tanaka +3 more | 2001-05-08 |
| 5213618 | Method for the preparation of chromatic-color metal flake pigments | Thoru Souma, Masahiro Ishidoya, Naoe Takai | 1993-05-25 |
| 5091010 | Chromatic-color metal flake pigment and colored composition compounded therewith | Thoru Souma, Masahiro Ishidoya, Naoe Takai | 1992-02-25 |