Issued Patents All Time
Showing 1–25 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12399317 | Optical fiber bundle structure, optical fiber connection structure, and optical fiber bundle structure manufacturing method | Kengo Watanabe, Masanori Takahashi, Ryuichi Sugizaki, Shigehiro Takasaka | 2025-08-26 |
| 12248171 | Multi-core optical amplifying fiber, multi-core optical fiber amplifier, and optical communication system | Shigehiro Takasaka, Ryuichi Sugizaki | 2025-03-11 |
| 12222541 | Optical fiber bundle structure, optical connector, optical fiber connection structure, and method of manufacturing optical fiber bundle structure | Kohei KAWASAKI, Ryuichi Sugizaki, Masayoshi Tsukamoto, Masanori Takahashi, Shigehiro Takasaka | 2025-02-11 |
| 12204141 | Optical fiber bundle structure, optical connector, optical fiber connection structure, and method of manufacturing optical fiber bundle structure | Kohei KAWASAKI, Ryuichi Sugizaki, Masayoshi Tsukamoto, Masanori Takahashi, Shigehiro Takasaka | 2025-01-21 |
| 12001050 | Manufacturing method of multicore fiber preform, multicore fiber preform, and multicore fiber | Masanori Takahashi, Shinichi Arai, Ryuichi Sugizaki, Masayoshi Tsukamoto | 2024-06-04 |
| 11940649 | Optical fiber bundle structure, optical connector, optical fiber connection structure, and method of manufacturing optical fiber bundle structure | Kohei KAWASAKI, Ryuichi Sugizaki, Masayoshi Tsukamoto, Masanori Takahashi, Shigehiro Takasaka | 2024-03-26 |
| 11073656 | Optical coupler and optical amplifier | Shigehiro Takasaka | 2021-07-27 |
| 10409746 | Memory access control device and control method of memory access | — | 2019-09-10 |
| D800802 | Refrigerating machine | Kenichiro Toriumi, Ataru Nakamura, Hajime Fujimoto, Hiroshi Sata | 2017-10-24 |
| D800186 | Refrigerating machine | Kenichiro Toriumi, Ataru Nakamura, Hajime Fujimoto, Hiroshi Sata | 2017-10-17 |
| D798345 | Rack for refrigerating machine | Kenichiro Toriumi, Ataru Nakamura, Hajime Fujimoto, Hiroshi Sata | 2017-09-26 |
| 9722388 | Multi-core optical amplifying fiber device and multi-core optical fiber amplifier | Masateru Tadakuma, Yukihiro TSUCHIDA, Shigehiro Takasaka, Ryuichi Sugizaki | 2017-08-01 |
| 9692201 | Optical-fiber-bundle structure, rare-earth-doped multi-core fiber, connection structure therefor, method for exciting rare-earth-doped multi-core fibers, and multi-core-optical-fiber amplifier | Kengo Watanabe, Tsunetoshi Saito, Yukihiro TSUCHIDA, Katsunori Imamura | 2017-06-27 |
| D788189 | Refrigerating machine | Kenichiro Toriumi, Ataru Nakamura, Hajime Fujimoto, Hiroshi Sata | 2017-05-30 |
| 9225141 | Multi-core amplification optical fiber and multi-core optical fiber amplifier | Yukihiro TSUCHIDA, Yu Mimura, Hiroshi Matsuura, Kengo Watanabe, Tsunetoshi Saito +4 more | 2015-12-29 |
| RE45719 | Surface-coated cutting tool | Masanori Morikawa, Yuki Matsuoka, Natsuki Ichimiya | 2015-10-06 |
| 8725954 | Information processing apparatus and memory control apparatus | Hiroyuki Wada | 2014-05-13 |
| 8354177 | Surface-coated cutting tool | Masanori Morikawa, Yuki Matsuoka, Natsuki Ichimiya | 2013-01-15 |
| 7510761 | Cutting tool made of surface-coated cemented carbide with hard coating layer exhibiting excellent wear resistance in high speed cutting operation of high hardness steel | Akihiro Kondo, Yusuke Tanaka | 2009-03-31 |
| 7168692 | Fluid filled vibration damping device whose flexible layer having thick walled portion | Hajime Maeno, Kazuhiko Kato | 2007-01-30 |
| 7140602 | Fluid filled vibration damping device | Katsuhiro Goto, Hajime Maeno | 2006-11-28 |
| 7074285 | Manufacturing method for high-speed tool steel gear cutting tool | Yasuyuki Yamada, Natsuki Ichimiya, Yusuke Tanaka, Kazuaki Tanaka | 2006-07-11 |
| 6978876 | Step for escalator | Yoshio Tsukahara, Kazuhiko Motomura, Takashi Tanaka | 2005-12-27 |
| 6863269 | Fluid filled vibration damping device | Kei Okumura, Hajime Maeno | 2005-03-08 |
| 6854721 | Vibration-damping device | Rentaro Kato, Hajime Maeno, Koichi Hasegawa, Takahiro Aoi | 2005-02-15 |