Issued Patents All Time
Showing 1–25 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12398062 | Method for producing optical fiber base material, and optical fiber base material | Yuki Kawaguchi | 2025-08-26 |
| 12216309 | Optical fiber | Yoshiaki Tamura, Yuki Kawaguchi, Masato Suzuki | 2025-02-04 |
| 12202934 | Charge-transport polymer and organic electronic element | Iori FUKUSHIMA, Kenichi Ishitsuka, Kazuyuki KAMO, Shunsuke KODAMA, Tomotsugu SUGIOKA +3 more | 2025-01-21 |
| 12030804 | Optical fiber | Yoshiaki Tamura, Akiko Funakoshi | 2024-07-09 |
| 11971571 | Optical fiber | Yuki Kawaguchi, Masato Suzuki | 2024-04-30 |
| 11740404 | Optical fiber | Yoshiaki Tamura, Yuki Kawaguchi, Masato Suzuki | 2023-08-29 |
| 11714226 | Optical fiber | Yoshiaki Tamura, Yuki Kawaguchi, Masato Suzuki | 2023-08-01 |
| 11476421 | Organic electronics material and organic electronics element | Kazuyuki KAMO, Iori FUKUSHIMA, Ryota MORIYAMA, Shunsuke KODAMA, Naoki Asano | 2022-10-18 |
| 11322904 | Optical amplifier and multi-core optical fiber | Takemi Hasegawa, Tetsuya Hayashi | 2022-05-03 |
| 11316316 | Optical amplifier and multi-core optical fiber | Takemi Hasegawa, Tetsuya Hayashi, Yoshiaki Tamura, Shigehiro Nagano | 2022-04-26 |
| 11280958 | Optical fiber, colored optical fiber, and optical transmission system | Yuki Kawaguchi, Yoshiaki Tamura | 2022-03-22 |
| 11181684 | Optical fiber | Yoshiaki Tamura, Keisei MORITA | 2021-11-23 |
| 11118005 | Composition, hole transport material composition, and ink composition | Kazuyuki KAMO, Kenichi Ishitsuka, Tomotsugu SUGIOKA, Yuki YOSHINARI, Ryo HONNA +1 more | 2021-09-14 |
| 11048040 | Optical fiber | Yoshiaki Tamura, Keisei MORITA, Yuki Kawaguchi | 2021-06-29 |
| 10989864 | Optical fiber, coated optical fiber, and optical transmission system | Yuki Kawaguchi, Yoshiaki Tamura | 2021-04-27 |
| 10723650 | Optical fiber preform | Keisei MORITA, Yoshiaki Tamura | 2020-07-28 |
| 10656326 | Optical fiber | Yoshiaki Tamura, Yuki Kawaguchi | 2020-05-19 |
| 10656329 | Optical fiber | Yoshiaki Tamura, Keisei MORITA, Yuki Kawaguchi | 2020-05-19 |
| 10550030 | Optical fiber | Yoshiaki Tamura, Keisei MORITA | 2020-02-04 |
| 10031282 | Optical fiber | Yoshiaki Tamura, Keisei MORITA | 2018-07-24 |
| 9954193 | Material for forming organic light-emitting layer, coating liquid for forming organic light-emitting element, organic light-emitting element and light source device, and method for manufacturing same | Sukekazu Aratani, Shingo Ishihara, Naoya Tokoo, Hiroshi Sasaki | 2018-04-24 |
| 9935291 | Organic light-emitting device, light source device using same, organic light-emitting layer material, coating liquid for forming organic light-emitting layer, and method for producing organic light-emitting device | Sukekazu Aratani, Hiroshi Sasaki | 2018-04-03 |
| 9817184 | Optical fiber | Yoshiaki Tamura, Tetsuya Haruna, Masaaki Hirano | 2017-11-14 |
| 9570717 | Organic luminescent materials, coating solution using same for organic | Sukekazu Aratani, Hiroshi Sasaki | 2017-02-14 |
| 9496516 | Organic light-emitting element, light source device and method of manufacturing organic light-emitting element | Sukekazu Aratani, Shunichiro Nobuki, Shingo Ishihara | 2016-11-15 |