Issued Patents All Time
Showing 1–25 of 67 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12407613 | Encryption key generation | Takao Ochi, Akio Tajima | 2025-09-02 |
| 12254286 | Random number supply method and device | — | 2025-03-18 |
| 12124364 | Random number quality management method and apparatus | Akio Tajima | 2024-10-22 |
| 12113578 | Optical sender and method for deciding modulation timing correctness | — | 2024-10-08 |
| 11909647 | Encryption key generation | Takao Ochi, Akio Tajima | 2024-02-20 |
| 11546065 | Optical modulation method and device using nested optical modulator | — | 2023-01-03 |
| 11536567 | Surveying instrument | Taichi Yuasa | 2022-12-27 |
| 11502831 | Transmitting device, receiving device, quantum key distribution method, and quantum key distribution program for quantum key distribution system | Mikio Fujiwara, Masahide Sasaki, Akihisa Tomita | 2022-11-15 |
| 11435457 | Surveying instrument | Taizo Eno, Hideki Morita, Kohei Fujita | 2022-09-06 |
| 11402506 | Laser measuring method and laser measuring instrument | Fumio Ohtomo, Kaoru Kumagai | 2022-08-02 |
| 11271661 | Drive-timing adjustment method and device for a photon detector, and optical communication system | — | 2022-03-08 |
| 11261511 | Hot forged steel material | Yoko Sueyasu, Hiroaki Tahira, Kison NISHIHARA | 2022-03-01 |
| 11143505 | Surveying instrument | Kaoru Kumagai | 2021-10-12 |
| 10935636 | Laser scanner | — | 2021-03-02 |
| 10875083 | Apparatus and method for manufacturing forged crankshaft | Tomohisa Yamashita, Kunihiro Yabuno, Sho Takamoto, Hiroyuki Kurokawa, Kenji Tamura +3 more | 2020-12-29 |
| 10828693 | Apparatus for manufacturing forged crankshaft | Tomohisa Yamashita, Sho Takamoto, Hiroyuki Kurokawa, Kunihiro Yabuno, Kenji Tamura +1 more | 2020-11-10 |
| 10823563 | Laser scanner system | Tadayuki Ito, Takahiro Komeichi | 2020-11-03 |
| 10816665 | Surveying system | Fumio Ohtomo | 2020-10-27 |
| 10735328 | Information communication system, information communication method and device | Takao Ochi, Akio Tajima | 2020-08-04 |
| 10634791 | Laser scanner system and registration method of point cloud data | Takahiro Komeichi, Tadayuki Ito | 2020-04-28 |
| 10488196 | Laser scanner system and registration method of point cloud data | Takahiro Komeichi, Tadayuki Ito | 2019-11-26 |
| 10464120 | Method for producing forged crankshaft | Kenji Tamura, Junichi Okubo, Kunihiro Yabuno, Hiroyuki Kurokawa, Tomohisa Yamashita +2 more | 2019-11-05 |
| 10441995 | Method for producing forged crankshaft | Sho Takamoto, Kenji Tamura, Tomohisa Yamashita, Kunihiro Yabuno, Hiroyuki Kurokawa +2 more | 2019-10-15 |
| 10413965 | Method for producing forged crankshaft | Sho Takamoto, Kenji Tamura, Tomohisa Yamashita, Kunihiro Yabuno, Hiroyuki Kurokawa +2 more | 2019-09-17 |
| 10385911 | Crankshaft for reciprocating engine, and design method thereof | Koichiro Ishihara | 2019-08-20 |