Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11414507 | Modified vinyl alcohol polymer, method for producing same, dispersion stabilizer for suspension polymerization, and method for producing vinyl polymer | Tadahito Fukuhara, Masato Nakamae | 2022-08-16 |
| 10392495 | Polyvinyl acetal composition | Yoshiaki ASANUMA | 2019-08-27 |
| 7153988 | 7α-hydroxy-pregn-4-en-3-one-20-carbaldehyde, process for producing the same, and process for producing 7α, 21-dihydroxy-20-methyl-pregn-4-en-3-one from the same | Masao Tsuji, Shigeo Ohzono, Makoto Nakazawa | 2006-12-26 |
| 7070731 | Dispersion stabilizer for suspension polymerization of vinyl compound and method of producing the same | Kiyohiko Sho, Kazuyuki Somemiya, Syunji Tago, Masako Katayama, Masaki Kato | 2006-07-04 |