Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5501874 | Method of coating granular material and apparatus therefor | Takaharu Yamamoto, Kouji Eguchi | 1996-03-26 |
| 4693879 | Ultrasonic vibration sieving apparatus and process for purifying carbon black by using the apparatus | Shushichi Yoshimura, Yasunori Hiwatashi, Hiromu Kobayashi, Hozo Yamazaki, Nobu Nishino +1 more | 1987-09-15 |