Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11406175 | Makeup brush | Motoki Takata, Miyako Okamoto, Ai Nieda, Mika Itou | 2022-08-09 |
| D837531 | Makeup brush | Maria Hirokawa | 2019-01-08 |
| 6599856 | Formed activated carbon and process for producing the same | Masashi Uchino, Eiji Yamada, Hiroshi Yamashita, Yoshitaka Takeda, Mitsuo Suzuki | 2003-07-29 |
| 6094338 | Electric double-layer capacitor | Satoshi Hirahara, Kohei Okuyama, Mitsuo Suzuki | 2000-07-25 |
| 5965479 | Activated carbon and process for producing the same | Mitsuo Suzuki, Hiroyuki Aikyo, Satoshi Hirahara, Kohei Okuyama | 1999-10-12 |
| 5956225 | Activated carbon, process for the preparation thereof and electric double layer-type capacitor electrode | Kohei Okuyama, Yoshitaka Takeda, Yoshio Yoshino | 1999-09-21 |
| 5077130 | Carbon fiber-reinforced carbon composite material | Kohei Okuyama | 1991-12-31 |