Issued Patents All Time
Showing 1–25 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11940534 | Detection device and detection unit | — | 2024-03-26 |
| 11635516 | Detection device, detection system and detection method | Syuji Kubota | 2023-04-25 |
| 11486817 | Detecting device, detecting unit, and detecting system | — | 2022-11-01 |
| 10585638 | Terminal apparatus, output apparatus, and information processing system | Tsutomu Kawase | 2020-03-10 |
| 10243676 | Information distribution system | Yasuyuki Nakamura, Tsutomu Kawase, Fumihiko Itoh | 2019-03-26 |
| 10051412 | Locational information transmission system, locational information transmission apparatus, and information processing device | Tsutomu Kawase | 2018-08-14 |
| D819606 | Speaker with multiple diaphragms | Masaaki Kabumoto, Tsutomu Kawase, Takaya Ochiai, Takashi Saitoh, Bob Spikman | 2018-06-05 |
| 9960858 | Positional information transmission system, positional information transmitter, and positional information transmitting method | Tsutomu Kawase | 2018-05-01 |
| 9955259 | Transmitter and position information management system | Tsutomu Kawase, Takaya Ochiai, Takashi Saito | 2018-04-24 |
| 9736576 | Energy conversion apparatus and speaker structure | Tsutomu Kawase | 2017-08-15 |
| 9510100 | Energy converter, speaker, and method of manufacturing energy converter | Tsutomu Kawase | 2016-11-29 |
| 9432775 | Energy conversion apparatus | — | 2016-08-30 |
| 8986567 | Magnetic body composition and a magnetic body product | — | 2015-03-24 |
| 8449965 | Multilayer optical recording medium and optical recording method | Hiroyoshi Sekiguchi, Masaru Shinkai, Eiko Hibino | 2013-05-28 |
| 8084113 | Multi-layered phase-change optical recording medium | Hiroyoshi Sekiguchi, Masaru Shinkai, Masaki Kato | 2011-12-27 |
| 8034426 | Two-layered optical recording medium | Masaru Shinkai, Hiroyoshi Sekiguchi, Masaki Kato | 2011-10-11 |
| 8000198 | Phase-change type optical recording medium and reproduction method and apparatus for such a recording medium | Masaru Shinkai, Hiroyoshi Sekiguchi, Eiko Hibino, Masaki Kato, Katsuyuki Yamada +1 more | 2011-08-16 |
| 7920454 | Optical recording medium, and method and apparatus for optical recording and reproducing thereof | Hiroyuki Iwasa, Masaru Shinkai | 2011-04-05 |
| 7894315 | Optical disk, recording method, recording medium, and optical disk unit, for recording information on multilayer optical disk | Masaki Kato, Katsuyuki Yamada, Kazunori Ito, Eiko Hibino, Masaru Shinkai +1 more | 2011-02-22 |
| 7848196 | Power determining method, single-sided multilayer optical disk, recording method, computer program product, computer-readable medium, and optical disk apparatus | Hiroyoshi Sekiguchi, Masaru Shinkai, Eiko Hibino, Masaki Kato, Katsuyuki Yamada | 2010-12-07 |
| 7773478 | Optical recording medium, multi-layered optical recording medium, and optical recording method and recording apparatus using the same | Eiko Hibino, Hiroshi Miura, Kazunori Ito, Makoto Harigaya, Hiroyoshi Sekiguchi +3 more | 2010-08-10 |
| 7767284 | Optical recording medium, and, method for manufacturing the same, and method and apparatus for optical recording and reproducing thereof | Masaru Shinkai, Hiroyuki Iwasa, Tatsuo Mikami, Yuki Nakamura, Tohru Yashiro | 2010-08-03 |
| 7613091 | Method for identifying double-layer disc and optical disc apparatus | Hiroyuki Iwasa, Masaru Shinkai | 2009-11-03 |
| 7601481 | Multilayer phase-change information recording medium, and method for recording and reproducing using the same | Masaru Shinkai, Hiroyuki Iwasa | 2009-10-13 |
| 7491436 | Optical information recording medium | Masaru Shinkai, Hiroyuki Iwasa | 2009-02-17 |