Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5068446 | Process for preparation of dibromopropyl ether compound having high melting point | Yoshikatsu Ogawa, Haruhiko Hisada, Takeshi Kasahara, Masahide Yoshiya | 1991-11-26 |
| 4777297 | Process for preparing bis-(4-hydroxy-3,5-dibromophenyl)-sulfone derivatives | Yoshikatsu Ogawa, Haruhiko Hisada, Takeshi Kasahara, Takayoshi Kojima | 1988-10-11 |
| 4719045 | Flame retardants for polyolefins | Yoshikatsu Ogawa, Haruhiko Hisada, Takeshi Kasahara, Masahide Yoshiya | 1988-01-12 |