Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10174203 | Magnetic pigments comprising a flaky substrate and layer of maghemite | Kaiman Shimizu, Fumiko Sasaki, Yukitaka Watanabe, Masahiko Yazawa | 2019-01-08 |
| 7241503 | Iridescent pigment having high brilliance and high chroma | — | 2007-07-10 |
| 7018464 | Body pigment and process for preparing the same | — | 2006-03-28 |
| 6511536 | Pigment in thin flakes coated with calcium carbonate and a method for manufacturing the same | Yukitaka Watanabe | 2003-01-28 |
| 6447759 | Ultraviolet absorbent | Yukitaka Watanabe | 2002-09-10 |
| 6432535 | Pigment in thin flakes and a method for manufacturing the same | Yukitaka Watanabe | 2002-08-13 |
| 6190445 | High-chroma orange pearl pigment | — | 2001-02-20 |
| 6086666 | Pigment for shielding of ultraviolet radiation | Yukitaka Watanabe | 2000-07-11 |
| 5846310 | Coated spherical SiO.sub.2 particles | Kazhisa Iwasa, Ralf Anselmann, Martin Knapp, Manuela Loch | 1998-12-08 |
| 5770310 | Composite fine particles of metal oxides and production thereof | Yukitaka Watanabe | 1998-06-23 |
| 5456749 | Anti-discoloring pearly luster pigment and method of preparing the same | Kazuhisa Iwasa, Katsuhisa Nitta | 1995-10-10 |
| 5407887 | Porous carrier for catalyst comprising metal oxide-coated metal and method of preparing same | Tsuyoshi Miyashita | 1995-04-18 |
| 5380360 | Ultra-fine granular barium sulfate-coated flaky pigment and method of preparing the same | Yumiko Waragai | 1995-01-10 |
| 5336309 | Flaky pigment | Masahiko Yazawa | 1994-08-09 |
| 5271770 | Platelet-like pigments coating with an optional first layer of barium or calcium sulfate and a layer of titanium and zirconium dioxide, which prevent transmission of ultraviolet and infrared rays | Tamio Aikawa | 1993-12-21 |
| 5169442 | Bluish green pigment and method of preparing the same | Yumiko Waragai | 1992-12-08 |
| 5118352 | Flaky extender pigment comprising hydrated titanium oxide layers and method for preparing the same | — | 1992-06-02 |
| 4956019 | Novel flaky color pigment and process for producing the same | Takaji Watanabe | 1990-09-11 |
| 4772331 | Flaky colored pigments, methods for their production, and their use in cosmetic compositions | Takaji Watanabe | 1988-09-20 |
| 4603047 | Flaky pigments, process for their preparation | Takaji Watanabe | 1986-07-29 |
| 4435220 | Transparent colored pigments | Takaji Watanabe | 1984-03-06 |