Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9632227 | Light guide body | Masaki Yamamoto | 2017-04-25 |
| 9435926 | Light guide body, relay apparatus, and speaker apparatus | Masaki Yamamoto, Koji Suzuki | 2016-09-06 |
| 8909055 | Relay device and speaker apparatus | Koji Suzuki, Takamori Shimazu, Masaki Yamamoto | 2014-12-09 |
| 8226222 | Ink set, recording method, and colored object | Noriko Kajiura, Akira Kawaguchi | 2012-07-24 |
| 8080100 | Trisazo compound, ink composition, recording method and colored body | Takashi Yoshimoto, Takahiko Matsui | 2011-12-20 |
| 7951234 | Water-soluble azo compound or salt thereof, ink composition and colored product | Ryoutarou Morita | 2011-05-31 |
| 7854797 | Porphyrazine coloring matter, ink, ink set, and colored product | Takafumi Fujii, Takashi Yoneda, Yasuo Kuroda | 2010-12-21 |
| 7771525 | Water-soluble azo compound or salt thereof, ink composition and colored product | Ryoutarou Morita | 2010-08-10 |
| 7591888 | Porphyrazine coloring matter, ink, ink set and colored article | Takafumi Fujii | 2009-09-22 |
| 7585361 | Porphyrazine coloring matter, ink, ink set and colored product | Takashi Yoneda, Hiroyuki Tsukui, Takafumi Fujii | 2009-09-08 |
| 7462228 | Water-base black ink composition and colored product | Hiroaki Ohno, Toru Yamaguchi, Takahiko Matsui, Takashi Yoneda, Yasuo Shirasaki +1 more | 2008-12-09 |
| 7326288 | Trisazo compound, ink composition, and colored object | Takahiko Matsui, Hiroaki Ohno, Takashi Yoneda, Yasuo Shirasaki | 2008-02-05 |