Issued Patents All Time
Showing 1–25 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9688090 | Identification medium | Itsuo Takeuchi, Tokio Sakauchi, Tooru Ida, Shinei Suzuki | 2017-06-27 |
| 9643444 | Identification medium | Itsuo Takeuchi, Tohru Ida, Seiya Shibuya | 2017-05-09 |
| 9298036 | Identification medium | Itsuo Takeuchi, Seiya Shibuya, Tooru Ida | 2016-03-29 |
| 8970953 | Identification medium and identification method therefor | Itsuo Takeuchi, Tokio Sakauchi, Seiya Shibuya, Tohru Ida | 2015-03-03 |
| 8915437 | Identification medium, method for reading data therefrom, apparatus for identification, and method and apparatus for production thereof | Itsuo Takeuchi, Tokio Sakauchi, Tohru Ida | 2014-12-23 |
| 8749750 | Discrimination medium and production method therefor | Tokio Sakauchi, Mutsumi Sasaki, Tohru Ida, Naomi Iida | 2014-06-10 |
| 8652592 | Discrimination medium and discrimination method for discriminating the same | Itsuo Takeuchi | 2014-02-18 |
| 8421987 | Discrimination medium and production method therefor | Tokio Sakauchi, Mutsumi Sasaki, Tohru Ida, Naomi Iida | 2013-04-16 |
| 8322753 | Identification medium, identification method, and identification apparatus | Itsuo Takeuchi, Tokio Sakauchi, Suzushi Nishimura, Gorou Suzaki | 2012-12-04 |
| 8279394 | Discrimination medium comprising a liquid crystal layer acting as a half-wave plate wherein a gradation of gradual or continuous color changes are displayed according to an area | Itsuo Takeuchi, Suzushi Nishimura, Gorou Suzaki | 2012-10-02 |
| 8168080 | Identifying medium, identifying medium manufacturing method, article, and identifying medium identifying method | Itsuo Takeuchi, Shinya Nasubida | 2012-05-01 |
| 8158239 | Identification medium | Itsuo Takeuchi, Shinya Nasubida | 2012-04-17 |
| 7943392 | Discrimination medium, discrimination method, article to be discriminated, and discrimination apparatus | Itsuo Takeuchi, Tokio Sakauchi, Susumu Oaku | 2011-05-17 |
| 7879415 | Discrimination medium and discrimination method therefor | Hiroyuki Matsumoto, Itsuo Takeuchi | 2011-02-01 |
| 7812937 | Identification medium, article, identification device, and method of identifying identification medium | Itsuo Takeuchi, Tokio Sakauchi, Tohru Ida, Shinya Nasubida | 2010-10-12 |
| 7762203 | Discrimination medium and article having the same | Hiroyuki Matsumoto, Jyunyou Nakagawa, Masaki Shibata | 2010-07-27 |
| 7590239 | Object identifying medium using multi-layer thin-film | Itsuo Takeuchi, Mutsumi Sasaki | 2009-09-15 |
| 7391546 | Discrimination medium and discrimination method using the same | Itsuo Takeuchi | 2008-06-24 |
| 7388627 | Discrimination medium and article to be discriminated | Itsuo Takeuchi, Masatake Ono, Mutsumi Sasaki, Tohru Ida | 2008-06-17 |
| 7201821 | Identifying medium and identifying method for object | Itsuo Takeuchi, Mutsumi Sasaki | 2007-04-10 |
| 6740431 | Medium for identifying matter to be identified and method for production thereof | Itsuo Takeuchi, Seiya Shibuya | 2004-05-25 |
| 6628439 | Genuineness detecting system and method for using genuineness detecting film | Akihito Shiozawa, Shinichiro Suzuki, Suzushi Nishimura, Itsuo Takeuchi, Mikihiko Sakakibara +1 more | 2003-09-30 |
| 6301047 | System for optically identifying an object | Itsuo Takeuchi, Seiya Shibuya | 2001-10-09 |
| 6061122 | Optical identification system using cholesteric liquid crystals | Itsuo Takeuchi, Seiya Shibuya | 2000-05-09 |
| 5756220 | Object to be checked for authenticity and a method for manufacturing the same | Itsuo Takeuchi, Masumi Yoda, Minoru Komiya, Tsugutaka Sugahara | 1998-05-26 |