GK

Goichi Katayama

YM Yamaha Marine: 9 patents #1 of 35Top 3%
Overall (2005): #1,537 of 245,428Top 1%
9
Patents 2005

Issued Patents 2005

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
6971360 Knocking avoidance control system of a four-stroke engine for an outboard motor 2005-12-06
6957635 Valve timing control for marine engine 2005-10-25
6938594 Valve timing control for marine engine Yoshibumi Iwata 2005-09-06
6910450 Variable valve timing structure for outboard motor engine 2005-06-28
6884131 Shift mechanism for marine propulsion unit Masanori Takahashi 2005-04-26
6877467 Four-cycle engine 2005-04-12
6860246 Valve timing control for marine engine 2005-03-01
6857405 Valve timing control for marine engine 2005-02-22
6840038 Exhaust system for outboard motor Katsumi Ochiai, Masanori Takahashi 2005-01-11