Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4452918 | Totally porous activated gel | Takateru Uchida, Takao Kiyota | 1984-06-05 |
| 4416783 | Liquid chromatography column, process for preparing the same and its use for fractionation | Masao Kasai | 1983-11-22 |
| 4368275 | Isocyanurate-vinyl alcohol-vinyl ester chromatographic packing | Yuzo Yanagihara, Makoto Honda | 1983-01-11 |
| 4339500 | Hydrophilic packing material for chromatography | Yuzo Yanagihara, Hiroshi Suzuki, Makoto Honda | 1982-07-13 |
| 4338404 | Gel permeation chromatographic packing and process for producing same utilizing suspension polymerization | Yasuyuki Tanaka, Junichi Takeda | 1982-07-06 |
| 4288515 | Process for reversal development using inductively chargeable magnetic powdery developer | Keitaro Yamashita | 1981-09-08 |
| 4277552 | Magnetic developing process and toner containing high coercive force magnetic powder | Masumi Asanae | 1981-07-07 |
| 4263439 | Process for preparing pyridine bases | Tetsuya Miyake, Kazuo Imamura | 1981-04-21 |
| 4239892 | Process for preparing pyridine bases | Tetsuya Miyake, Kazuo Imamura | 1980-12-16 |