KO

Koichirou Ogura

YA Yamabiko: 2 patents #5 of 37Top 15%
Overall (2023): #135,250 of 537,848Top 30%
2
Patents 2023

Issued Patents 2023

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11828221 Schnuerle scavenging two-stroke engine Takahiro Yamazaki, Ken Shirai, Hisato Onodera 2023-11-28
11598247 Two-stroke internal combustion engine Hisato Onodera, Ken Shirai, Tetsuya Isogai 2023-03-07