Issued Patents All Time
Showing 26–50 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5222016 | Frequency converter | Masaru Hashimoto | 1993-06-22 |
| 5217914 | Method for making semiconductor integration circuit with stacked capacitor cells | Toshiki Yabu, Yoshiro Nakata, Naoto Matsuo, Shozo Okada, Hiroyuki Sakai | 1993-06-08 |
| 5214296 | Thin-film semiconductor device and method of fabricating the same | Yoshiro Nakata, Naoto Matsuo, Toshiki Yabu, Shozo Okada | 1993-05-25 |
| D334219 | Infant mobile | Chino Sugiyama | 1993-03-23 |
| D333389 | Car baby bed | Hideo Saito, Yoshiyasu Ishii | 1993-02-23 |
| D331429 | Mobile | Tomono Sugiyama | 1992-12-01 |
| D328196 | High chair | Takehiko Takahashi, Yoshiyasu Ishii | 1992-07-28 |
| D311934 | Toy vehicle | Takehiko Takahashi, Yoshiyasu Ishii, Taira Hanashima | 1990-11-06 |
| 4959092 | Substituted phenyl (or pyridyl) urea compound and herbicidal composition containing the same as active ingredient | Hiroki Ohta, Katsutoshi Sato, Kazuo Ishii, Yumiko Miura, Hisao Watanabe +3 more | 1990-09-25 |
| D307629 | Auxiliary toilet seat for a child | Takehiko Takahashi, Yoshiyasu Ishii, Jun Sekine | 1990-05-01 |
| D306748 | Toy vehicle | Takehiko Takahashi, Yoshiyasu Ishii | 1990-03-20 |
| 4877804 | Thiadiazole derivative, and insecticidal and miticidal composition containing the derivative as the effective ingredient | Hiroki Ohta, Masahiro Yamada, Yoshiaki Higashino, Toshiki Fukuchi | 1989-10-31 |
| D303459 | Baby seat | Shinroku Nakao, Yoshiyasu Ishii | 1989-09-19 |
| D302707 | Toy vehicle | Shinroku Nakao, Yoshiyasu Ishii | 1989-08-08 |
| 4722934 | Thiadiazole derivative and insecticidal and miticidal composition containing the same as an active ingredient | Shigeru Suzuki, Hiroki Ohta, Yoshiaki Higashino, Toshiki Fukuchi | 1988-02-02 |
| 4705554 | Benzofuranyloxyphenylurea derivative and herbicidal composition containing it as an active ingredient | Shigeru Suzuki, Hisao Watanabe, Hiroshi Hanabe | 1987-11-10 |
| D291156 | Convertible high chair | Shinroku Nakao, Yoshiyasu Ishii | 1987-08-04 |
| D282673 | Toy rattle | Shinroku Nakao, Yoshiyasu Ishii | 1986-02-18 |
| D282184 | Toy vehicle | Shinroku Nakao, Yoshiyasu Ishii | 1986-01-14 |
| D278644 | Driving toy | Shinroku Nakao, Yoshiyasu Ishii | 1985-04-30 |
| D275502 | Musical activity toy | Shinroku Nakao, Yoshiyasu Ishii | 1984-09-11 |
| D272551 | Toy vehicle | Shinroku Nakao, Yoshiyasu Ishii, Kiyoshi Hoshino | 1984-02-07 |
| D269887 | Animal figure toy | Shinroku Nakao, Yoshiyasu Ishii | 1983-07-26 |
| D267258 | Toy vehicle | Shinroku Nakao, Yoshiyasu Ishii, Kiyoshi Hoshino | 1982-12-14 |
| D267259 | Toy vehicle | Shinroku Nakao, Yoshiyasu Ishii, Kiyoshi Hoshino | 1982-12-14 |