Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9883407 | Radio wave propagation environment measuring apparatus, radio network construction system, and method for measuring radio wave propagation environment | Tsutomu Yamada, Hiromichi Endo | 2018-01-30 |
| 9167435 | Apparatus for supporting layout of wireless base stations in building | Tsutomu Yamada | 2015-10-20 |
| 8971318 | Relay communication apparatus and multistage relay communication system | Tsutomu Yamada, Noritaka Matsumoto, Kazuya Shimoyama, May Takada, Masayuki Miyazaki | 2015-03-03 |
| 8742432 | Metal substrate and light source device | Nobuhiro Arai, Jun Matsui, Shingetsu Yamada, Shuuji Suzuki | 2014-06-03 |
| 8705386 | Wireless communication apparatus and wireless communication method | Tsutomu Yamada, Yoshinori Okura, May Takada | 2014-04-22 |
| 8693481 | Communication device | Noritaka Matsumoto, Tsutomu Yamada, Kazuya Shimoyama | 2014-04-08 |
| 8649730 | Wireless data transport apparatus and wireless data transport system | Tsutomu Yamada, Hideaki Suzuki, Shoji Suzuki, Tatsuya Maruyama, Junsuke Fujiwara | 2014-02-11 |
| 8508141 | Light control apparatus for light emitting device and illumination system | Toru Takeda, Akeo Kasakura, Shinji Takai, Hiroaki Sakuta | 2013-08-13 |
| 8285219 | Apparatus and method for searching for wireless station locations | Kenji IMAMOTO, Yoshinori Okura | 2012-10-09 |
| 8160594 | Radio propagation estimating method and radio propagation estimating apparatus | Yoshinori Okura | 2012-04-17 |
| 7984465 | Broadcasting data converter | Takaharu Ishida, Osamu Tomobe, Toshiyuki Oda | 2011-07-19 |
| 7606527 | Digital broadcast receiving device, digital broadcast receiving method, and program therefor | Osamu Tomobe, Takaharu Ishida, Hideki Inoue, Tomoo Yasukawa | 2009-10-20 |
| 7580612 | Digital broadcast sending apparatus, receiving apparatus and digital broadcast system | Osamu Tomobe, Takaharu Ishida, Hiroki Uchiyama | 2009-08-25 |
| 6807213 | Semiconductor optical device apparatus | Kenji Shimoyama, Nobuyuki Hosoi, Kazumasa Kiyomi, Satosi Kikuchi | 2004-10-19 |
| 6707071 | Semiconductor light-emitting device | Makiko Hashimoto, Nobuyuki Hosoi, Kenji Shimoyama, Katsushi Fujii, Kazumasa Kiyomi | 2004-03-16 |
| 6512464 | Information exchange system | Kazunori Takahashi, Takeshi Shima, Hiroshi Shojima, Takayuki Iino | 2003-01-28 |
| 6437706 | Toll collection system and its communication method | Manabu Kato | 2002-08-20 |
| 6387721 | Semiconductor light-emitting device and manufacturing method for the same | Makiko Hashimoto, Nobuyuki Hosoi, Kenji Shimoyama, Katsushi Fujii, Kazumasa Kiyomi | 2002-05-14 |
| 6335693 | Information exchange system | Kazunori Takahashi, Takeshi Shima, Hiroshi Shojima, Takayuki Iino | 2002-01-01 |
| 6278137 | Semiconductor light-emitting devices | Kenji Shimoyama, Nobuyuki Hosoi, Katsushi Fujii, Atsunori Yamauchi, Hideki Gotoh | 2001-08-21 |
| 6097313 | Information exchange system | Kazunori Takahashi, Takeshi Shima, Hiroshi Shojima, Takayuki Iino | 2000-08-01 |
| 5811839 | Semiconductor light-emitting devices | Kenji Shimoyama, Nobuyuki Hosoi, Katsushi Fujii, Atsunori Yamauchi, Hideki Gotoh | 1998-09-22 |