Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4269869 | Method for improving surface properties of porous inorganic material by coating | Yasushi MOROHASHI, Yasuji Komatsu, Toshiaki Hanyuda, Eiichiro Takiyama, Kenji Sugimoto | 1981-05-26 |
| 4213926 | Method for making a decorative plate used in a building | Minoru Toyoda, Kenji Sugimoto, Kensuke Aoyama | 1980-07-22 |