Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7473777 | Method for production of halogen-containing phthalocyanine compound | Kouichi Hirota, Yukihide Hashimoto, Kiyoshi Masuda | 2009-01-06 |
| 7238801 | Phthalocyanine compound, method for production thereof, and near infrared absorbing dye and near infrared absorbing filter using same | Kiyoshi Masuda | 2007-07-03 |
| 7132465 | Near-infrared absorbing coat film and near-infrared absorbing resin composition | Takahiro Aoyama, Toshifumi Nishida, Nobuhisa Noda, Kiyoshi Masuda | 2006-11-07 |
| 6323340 | Phthalocyanine compound, method for production thereof, and near infrared absorption dye using the compound | Kiyoshi Masuda, Chie Tateyama | 2001-11-27 |