Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10080713 | Surface-treated spherical calcium carbonate particles for cosmetics and method for producing same | Hiroyuki Izumikawa, Takeshi Nishimura | 2018-09-25 |
| D598158 | Tubular lamp | Akio Watanabe, Naomitsu Aoki, Takafumi Ishida, Hidenori Shigeeda, Yuji Itakura +1 more | 2009-08-11 |
| D586941 | Tubular lamp | Yuji Itakura, Tetsuo Ootani, Akio Watanabe | 2009-02-17 |
| D586939 | Tubular lamp | Akio Watanabe, Naomitsu Aoki, Takafumi Ishida, Hidenori Shigeeda, Yuji Itakura +1 more | 2009-02-17 |
| D586940 | Tubular lamp | Yuji Itakura, Tetsuo Ootani, Akio Watanabe | 2009-02-17 |
| D586495 | Tubular lamp | Akio Watanabe, Naomitsu Aoki, Takafumi Ishida, Hidenori Shigeeda, Yuji Itakura +1 more | 2009-02-10 |
| D586494 | Tubular lamp | Akio Watanabe, Naomitsu Aoki, Takafumi Ishida, Hidenori Shigeeda, Yuji Itakura +1 more | 2009-02-10 |
| 6875316 | High reactivity and high strength coke for blast furnace and method for producing the same | Koji Hanaoka, Katsutoshi Igawa, Yutaka Yamauchi, Shizuki Kasaoka, Toshiro Sawada +3 more | 2005-04-05 |
| 6830660 | Method for producing metallurgical coke | Yutaka Yamauchi, Katsutoshi Igawa, Shizuki Kasaoka, Toshiro Sawada, Koichi Shinohara +2 more | 2004-12-14 |
| 5863641 | Polyester film for sublimation type thermal transfer printing | Jun Takahashi | 1999-01-26 |
| 5670236 | Biaxially oriented polyester film for magnetic recording medium | Tomoyuki Kotani, Kazuo Endo, Takashi Harada, Narihiro Masuda, Masashi Inagaki +1 more | 1997-09-23 |
| 5401558 | Biaxially oriented polyester film for capacitor dielectric | Kenji Kato | 1995-03-28 |
| 5364684 | Magnetic recording medium comprising a polyethylene-2,6-naphthalate multilayered film coated on both sides by a coating layer | Toshifumi Watanabe, Toshifumi Takisawa | 1994-11-15 |
| 5324574 | Biaxially stretched polyester film | Chikakazu Kawaguchi, Takahashi Harada | 1994-06-28 |
| 5164439 | Polyester film for magnetic recording media | Kazuo Endo, Yoshio Meguro | 1992-11-17 |
| 5096773 | Biaxially oriented polyester film | — | 1992-03-17 |
| 5061571 | Biaxially oriented polyester film | — | 1991-10-29 |
| 5023291 | Polyester composition | Nobuyasu Shudo | 1991-06-11 |
| 5006589 | Polyester film for magnetic recording media | Chikakazu Kawaguchi, Yoshio Meguro, Takashi Harada, Toshifumi Takisawa | 1991-04-09 |
| 4886705 | Polyphenylene sulfide film | — | 1989-12-12 |
| 4840830 | Polyester film for magnetic recording tape | Kiyoshi Yasumura | 1989-06-20 |
| 4767657 | Polyester films suitable for use in magnetic tapes | Yoshio Meguro | 1988-08-30 |
| 4732799 | Polyethylene naphthalate film | Yoshinori Sato | 1988-03-22 |
| 4729915 | Electrical insulating material | Yoshinori Sato | 1988-03-08 |
| 4320207 | Polyester film containing fine powder of crosslinked polymer | Masamichi Watanabe | 1982-03-16 |