Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10487777 | Air leading-type stratified scavenging two-stroke internal-combustion engine | Takahiro Yamazaki, Hisato Osawa | 2019-11-26 |
| 10113517 | Air cleaner for stratified scavenging two-stroke internal combustion engine | Hisato Osawa, Takahiro Yamazaki, Yuuta Kobayashi | 2018-10-30 |
| 10036304 | Leading-air type two-stroke air-cooled engine | Takahiro Yamazaki, Hisato Osawa, Shunsuke Ueda | 2018-07-31 |
| 10024224 | Rotary carburetor for two-stroke internal combustion engine | Takahiro Yamazaki, Shirou Yamaguchi, Takamasa Otsuji | 2018-07-17 |
| 9988971 | Air leading type two-stroke engine and intake system for same, and carburetor | Takahiro Yamazaki, Hisato Osawa, Tomoyoshi KUDO | 2018-06-05 |
| 9988970 | Suction tube unit of stratified scavenging engine | Hisato Ohsawa, Takahiro Yamazaki | 2018-06-05 |
| 9938926 | Air leading-type stratified scavenging two-stroke internal-combustion engine | Takahiro Yamazaki, Takamasa Otsuji | 2018-04-10 |
| 8141536 | Air cleaner for stratified-scavenging two-stroke internal combustion engine | — | 2012-03-27 |
| 7857881 | Air cleaner for two-stroke internal combustion engine and method of tuning the length of air-fuel mixture passage by using the air cleaner | Shigeru Sato, Kunimune Kawamura, Kazuhiro Tsutsui | 2010-12-28 |
| 7011078 | Two-stroke internal combustion engine | Shiro Yamaguchi, Kentaro Matsuo, Keita Kamo | 2006-03-14 |