Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886667 | External preparation composition | Kanshiro Kitagaki, Keiko Ebihara, Shigeo Morioka, Taizo Okada | 1989-12-12 |
| 4239865 | Polyvinyl (dialkylthiocarbamoylthio)acetate resin, method for producing same and heavy metals-removing agent comprising same | Ryohkichi Tarao, Kanji Kaku, Masaki Hayashi, Shigeo Ohishi | 1980-12-16 |