Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12252617 | Method for producing halogenated zinc phthalocyanine pigment | Keisuke Sakamoto, Ayaka Yamaji, Kazushi Suzuki, Katsunori Shimada | 2025-03-18 |
| 12221546 | Method for producing halogenated zinc phthalocyanine pigment | Keisuke Sakamoto, Ayaka Yamaji, Nozomi Shimizu, Katsunori Shimada | 2025-02-11 |
| 12139615 | Method for producing halogenated zinc phthalocyanine pigment | Keisuke Sakamoto, Kentaro Oishi, Ryousuke Asami, Katsunori Shimada | 2024-11-12 |
| 11976199 | Halogenated zinc phthalocyanine pigment for color filter and method for producing halogenated zinc phthalocyanine pigment for color filter | Keisuke Sakamoto, Kentaro Oishi, Ryousuke Asami, Katsunori Shimada, Keisuke Fujisawa | 2024-05-07 |
| 9908991 | Organic pigment composition for color filters, method for producing the same, and color filter | Masanori Fujimaki, Akira Kimura, Katsunori Shimada, Kayoko Fukushima, Masaharu Takahashi | 2018-03-06 |