Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6488867 | Organic fluorescent whitening pigment composition having an excellent hiding power | Takao Yanagisawa, Shigehiro Matsumoto, Kunio Shimabukuro | 2002-12-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6488867 | Organic fluorescent whitening pigment composition having an excellent hiding power | Takao Yanagisawa, Shigehiro Matsumoto, Kunio Shimabukuro | 2002-12-03 |