Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4829187 | UV-ray sensitive composition and element for measuring UV-ray dose | Masaru Suetsugu, Minoru Fukuda, Takao Higashi, Norimichi Koizumi | 1989-05-09 |
| 4818614 | Modified powder | Hiroshi Fukui, Ryujiro Namba, Tsutomu Saito, Yutaka Ohtsu, Asa Kimura +11 more | 1989-04-04 |
| 4801445 | Cosmetic compositions containing modified powder or particulate material | Hiroshi Fukui, Ryujiro Namba, Tsutomu Saito, Yutaka Ohtsu, Asa Kimura +11 more | 1989-01-31 |