Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7636347 | Integrated radio communication system, mobile communication system, switching apparatus, radio terminal, and communication method | Yoshikazu Ishii, Tomoharu Kaneko | 2009-12-22 |
| 7221940 | Server on wireless network communicates with terminal on cellular network | Tomoharu Kaneko, Yoshikazu Ishii, Tomohiro Iwama, Satoshi Uno | 2007-05-22 |
| 6498203 | Rubber-erasable aqueous ink for writing material composition and writing materials using the same | Hiroyuki Hayashi, Hiroyuki Nakamura | 2002-12-24 |
| 5932992 | Method for energizing energization-operated toy element and energization-operated toy | Tsutomu Tomatsu, Kyoji Aoyama, Naomasa Miyashita, Nobuaki Matsunami | 1999-08-03 |
| 5879443 | Temperature-sensitive color-memorizing microencapsulated pigment | Kuniyuki Senga | 1999-03-09 |
| 5785746 | Preparation method for shear-thinning water-based ball-point pen inks compositions and ball-point pens employing the same | Kuniyuki Senga | 1998-07-28 |
| 5721059 | Temperature-dependent color/transparency storing resin composition and laminate member employing the same | Kuniyuki Senga, Hiroyuki Hayashi | 1998-02-24 |
| 5716253 | Thermally color-changeable toy | Tadashi Aoki, Tsutomu Tomatsu, Kyoji Aoyama, Naomasa Miyashita | 1998-02-10 |
| 5585425 | Thermochromic opaque/transparent composition, laminate member employing the same, and three-dimensional member employing said laminate member and capable of concealing and revealing the interior | Kuniyuki Senga, Hiroyuki Hayashi | 1996-12-17 |
| 5490956 | Thermochromic opaque composition, laminate member employing the same, and three-dimensional member employing said laminate member and capable of concealing and revealing the interior | Kuniyuki Senga, Hiroyuki Hayashi | 1996-02-13 |
| 5153066 | Temperature-sensitive color-changeable composite fiber | Kazuhiko Tanaka, Masao Kawamoto, Kenji Hiramatsu, Kuniyuki Senga | 1992-10-06 |
| 5085607 | Toy that stably exhibits different colors with indicator for proper temperature application | Yutaka Shibahashi, Norikazu Nakasuji, Hiroshi Inagaki | 1992-02-04 |
| 5079049 | Artificial plant that stably exhibits different colors | Norikazu Nakasuji, Hiroshi Inagaki, Yutaka Shibahashi, Takashi Kataoka | 1992-01-07 |
| 5011445 | Color memory toy set | Norikazu Nakasuji, Yutaka Shibahashi | 1991-04-30 |
| 4865648 | Reversible heat sensitive recording composition | Norikazu Nakasuji, Takashi Kataoka, Hiroshi Inagaki, Yutaka Shibahashi | 1989-09-12 |
| 4732810 | Reversible temperature-indicating composition | Norikazu Nakasuji, Takashi Kataoka, Hiroshi Inagaki, Yutaka Shibahashi, Nobuaki Matsunami | 1988-03-22 |
| 4720301 | Reversible heat sensitive recording composition | Norikazu Nakasuji, Takashi Kataoka, Hiroshi Inagaki, Yutaka Shibahashi | 1988-01-19 |
| 4425161 | Thermochromic materials | Yutaka Shibahashi, Norikazu Nakasuji, Takashi Kataoka, Hiroshi Inagaki | 1984-01-10 |