Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9937434 | Photochromic toy | Michiyuki Yasuda, Yoshie Kamiya | 2018-04-10 |
| 9005857 | Thermochromic color-memorization toner, cartridge including same housed therein, image formation apparatus, cartridge set, and image formation apparatus set | Katsuyuki Fujita, Yoshiaki Ono | 2015-04-14 |
| 8444450 | Method for alternately expressing color-memorizing photochromic function in toy element, and an alternately color-memorizing photochromic toy | Michiyuki Yasuda, Masahiro Irie | 2013-05-21 |
| 7575386 | Color-memorizing photochromic writing instrument, color-memorizing photochromic writing instrument set using the same and method for alternately expressing color-memorizing photochromic function of writing image | Michiyuki Yasuda, Masahiro Irie | 2009-08-18 |
| 6713431 | Metallic luster tone thermochromic laminate member | Michiyuki Yasuda | 2004-03-30 |
| 6444313 | Thermochromic acrylic synthetic fiber, its processed article, and process for producing thermochromic acrylic synthetic fiber | Yoshiaki Ono, Naoya Ishimura | 2002-09-03 |
| 6048387 | Reversible thermochromic composition | Jun Sugai | 2000-04-11 |
| 5879438 | Method for improving light-fastness of reversible thermochromic compositions at the time of color extinguishment | Katsuyuki Fujita, Yoshiaki Ono | 1999-03-09 |
| 5873932 | Method for improving light-fastness of reversible thermochromic compositions at the time of color development | Katsuyuki Fujita, Yoshiaki Ono | 1999-02-23 |
| 5858914 | Thermochromic coloring color-memory footwear | Katsuyuki Fujita, Akio Nakashima | 1999-01-12 |
| 5688592 | Thermochromic laminate comprising light intercepting pigment and light stabilizer | Katsuyuki Fujita | 1997-11-18 |
| 5558700 | Reversible thermochromic composition | Jun Sugai | 1996-09-24 |
| 5558699 | Thermochromic color-memory composition | Akio Nakashima | 1996-09-24 |
| 5352649 | Thermochromic laminate member, and composition and sheet for producing the same | Michiyuki Yasuda | 1994-10-04 |
| 5085607 | Toy that stably exhibits different colors with indicator for proper temperature application | Tsutomu Kito, Norikazu Nakasuji, Hiroshi Inagaki | 1992-02-04 |
| 5079049 | Artificial plant that stably exhibits different colors | Tsutomu Kito, Norikazu Nakasuji, Hiroshi Inagaki, Takashi Kataoka | 1992-01-07 |
| 5011445 | Color memory toy set | Norikazu Nakasuji, Tsutomu Kito | 1991-04-30 |
| 4920991 | Thermochromic artificial nail | Norikazu Nakasuji | 1990-05-01 |
| 4865648 | Reversible heat sensitive recording composition | Tsutomu Kito, Norikazu Nakasuji, Takashi Kataoka, Hiroshi Inagaki | 1989-09-12 |
| 4732810 | Reversible temperature-indicating composition | Tsutomu Kito, Norikazu Nakasuji, Takashi Kataoka, Hiroshi Inagaki, Nobuaki Matsunami | 1988-03-22 |
| 4720301 | Reversible heat sensitive recording composition | Tsutomu Kito, Norikazu Nakasuji, Takashi Kataoka, Hiroshi Inagaki | 1988-01-19 |
| 4681791 | Thermochromic textile material | Norikazu Nakasuji, Takashi Kataoka, Hiroshi Inagaki, Tutomu Kito, Masaharu Ozaki +3 more | 1987-07-21 |
| 4554565 | Method of producing reversible thermochromic display | Tutomu Kito, Norikazu Nakasuji, Takashi Kataoka, Hiroshi Inagaki | 1985-11-19 |
| 4425161 | Thermochromic materials | Norikazu Nakasuji, Takashi Kataoka, Hiroshi Inagaki, Tsutomu Kito | 1984-01-10 |
| 4421560 | Thermochromatic materials | Tutomu Kito, Norikazu Nakasuji, Takashi Kataoka, Hiroshi Inagaki | 1983-12-20 |