Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6444853 | Process for producing aromatic disulfides | Isamu Arai, Yoko Hida | 2002-09-03 |
| 6376716 | Process for the preparation of aromatic sulfur compounds | Isamu Arai, Yoko Hida | 2002-04-23 |
| 5121328 | Fee calculating apparatus for calculating delivery fee of parcel in accordance with its weight, length, and delivery area | Tohru Sakai, Hanzou Tsuzuki | 1992-06-09 |
| 5084525 | Epoxy resin composition with polyamide powder | Ichiro Akutagawa, Kunimitsu Matsuzaki | 1992-01-28 |