Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12212026 | Fuel cell single unit, fuel cell module, and fuel cell device | Mitsuaki Echigo, Noritoshi Shinke, Yuji Tsuda | 2025-01-28 |
| 12126064 | Metal support-type fuel cell and fuel cell module | Mitsuaki Echigo, Noritoshi Shinke, Yuji Tsuda | 2024-10-22 |
| 11971381 | Gas detection device | Susumu Takami, Atsushi Nonaka | 2024-04-30 |
| 11749821 | Fuel cell device and method for operating fuel cell device | Mitsuaki Echigo, Noritoshi Shinke, Yuji Tsuda | 2023-09-05 |
| 5476791 | Process for producing optically active carboxylic acid amide | Akihiro Sakimae, Yuri Kagawa, Ryozo Numazawa | 1995-12-19 |
| 4885244 | Method of producing hyaluronic acid | Takao Miyamori, Ryozo Numazawa, Akihiro Sakimae | 1989-12-05 |
| 4746435 | Biochemical process for purifying contaminated water | Ryozo Numazawa | 1988-05-24 |
| 4629701 | Process for preparing optically active carboxylic acids and antipode esters thereof | Akihiro Sakimae, Yuri Kagawa, Ryozo Numazawa | 1986-12-16 |
| 4276381 | Preparation of immobilized enzymes of microorganisms | Akihiro Sakimae | 1981-06-30 |
| 4181604 | Process and apparatus for waste water treatment | Ryozo Numazawa, Hitoshi Takeda | 1980-01-01 |