Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11600742 | Optical semiconductor element comprising n-type AlGaN graded layer | — | 2023-03-07 |
| 11031522 | Optical semiconductor element comprising n-type algan graded layer | — | 2021-06-08 |
| 10731274 | Group III nitride laminate and vertical semiconductor device having the laminate | Yoshinao Kumagai, Hisashi Murakami | 2020-08-04 |
| 10665753 | Vertical-type ultraviolet light-emitting diode | — | 2020-05-26 |
| 10644199 | Group III nitride stacked body, and semiconductor device having the stacked body | Toshiyuki Obata | 2020-05-05 |
| 10224458 | Group III nitride laminate, luminescence element comprising said laminate, and method of producing group III nitride laminate | Hiroshi Furuya, Toshiyuki Obata | 2019-03-05 |
| 9954239 | Solid polymer power generation or electrolysis method and system | Yoshitsugu Sone, Masato Sakurai, Asuka Shima, Minoru Umeda, Tetsuya Nakabeppu +1 more | 2018-04-24 |
| 9840790 | Highly transparent aluminum nitride single crystalline layers and devices made therefrom | Akinori Koukitu, Yoshinao Kumagai, Toru Nagashima, Yuki Kubota, Rafael Dalmau +4 more | 2017-12-12 |
| 9806205 | N-type aluminum nitride monocrystalline substrate | Toru Nagashima | 2017-10-31 |
| 9748410 | N-type aluminum nitride single-crystal substrate and vertical nitride semiconductor device | Toshiyuki Obata, Toru Nagashima | 2017-08-29 |
| 9487697 | Composite wavelength conversion powder, resin composition containing composite wavelength conversion powder, and light emitting device | Tsutomu NOZOE | 2016-11-08 |
| 9343525 | Aluminum nitride substrate and group-III nitride laminate | Keiichiro Hironaka | 2016-05-17 |
| 9297093 | Layered body having a single crystal layer | Kazuya Takada | 2016-03-29 |
| 8865591 | N-type contact electrode formed on an N-type semiconductor layer and method of forming same using a second metal electrode layer heat-treated after being formed on a first, heat-treated metal electrode layer | Naoki Tamari | 2014-10-21 |
| 8704239 | Production method of a layered body | Kazuya Takada | 2014-04-22 |
| 8238391 | P-type group III nitride semiconductor and group III nitride semiconductor element | Hiroyuki Yanagi, Kazuya Takada | 2012-08-07 |
| 7985476 | Transparent zirconia dispersion and zirconia particle-containing resin composition, composition for sealing light emitting element and light emitting element, hard coat film and optical functional film and optical component, and method for producing zirconia particle-containing resin | Yasuyuki Kurino, Naoki Takamiya, Yoshitaka Yamamoto, Tsuyoshi Kawase, Yoshizumi Ishikawa +3 more | 2011-07-26 |
| 7958972 | Sealing device for elevator | Shin Murakami | 2011-06-14 |
| 7921970 | Sealing device for elevator | Shin Murakami | 2011-04-12 |
| 7584825 | Sealing device for elevator | Shin Murakami | 2009-09-08 |
| D406906 | Pivoting metal foot-step for a steel tower | — | 1999-03-16 |
| 5243006 | Acrylic copolymer | Nobuo Nakabayashi, Kazuhiko Ishihara, Takashi Yamamoto | 1993-09-07 |
| 4656218 | Adhesive copolymer microspheres-containing aqueous suspension and method for producing the same | — | 1987-04-07 |
| 4645783 | Adhesive copolymer microspheres-containing aqueous suspension and method for producing the same | — | 1987-02-24 |