SY

Shiro Yamaguchi

KI Kioritz: 4 patents #52 of 197Top 30%
YA Yamabiko: 4 patents #24 of 132Top 20%
IC Iida Denki Kogyo Co.: 2 patents #6 of 17Top 40%
Overall (All Time): #619,664 of 4,157,543Top 15%
8
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11624337 Two-cycle engine Ken Shirai 2023-04-11
10927789 Stratified scavenging engine and portable work machine Ken Shirai, Tetsuya Isogai 2021-02-23
10415496 Handheld engine-driven working machine Takamasa Otsuji, Kosuke Matsumoto, Hiroyuki Miyaki, Akira Yamazaki 2019-09-17
9945290 Handheld engine-driven working machine Takamasa Otsuji, Kosuke Matsumoto, Hiroyuki Miyaki, Akira Yamazaki 2018-04-17
7011078 Two-stroke internal combustion engine Kentaro Matsuo, Keita Kamo, Hidekazu Tsunoda 2006-03-14
6513465 Two-stroke internal combustion engine Takashi Fukuoka, Mitsujiro Mochizuka 2003-02-04
6142113 Two-cycle internal combustion engine and cylinder Mitsujiro Mochizuka, Shigeru Taniguchi, Masami Uchida, Masayoshi Miyamoto 2000-11-07
5699761 Two-stroke internal combustion engine Masayoshi Miyamoto 1997-12-23