Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4710373 | Long wavelength ultraviolet ray absorber | Koichi Nakamura, Michihiro Hattori, Tadashi Tamura, Toru Tejima, Naotake Takaishi +1 more | 1987-12-01 |
| 4704473 | 4-methoxy-2'-carboxydibenzoylmethane and its salts | Koichi Nakamura, Kimihiko Hori, Michihiro Hattori, Toru Tejima, Naotake Takaishi | 1987-11-03 |
| 4584190 | Novel chalcone derivatives and ultraviolet absorbers comprising the same | Tohru Tejima, Koichi Nakamura, Michihiro Hattori, Shinichi Masuda, Naotake Takaishi | 1986-04-22 |
| 4569931 | Sebum secretion accelerator | Naonobu Yoshizuka, Eijiro Takeuchi | 1986-02-11 |