MS

Masafumi Sohgawa

SI Sanshin Industries: 1 patents #190 of 319Top 60%
YC Yamaha Motor Co.: 1 patents #6 of 83Top 8%
Overall (All Time): #2,276,788 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5494467 Exhaust system for outboard motor Atsushi Isogawa, Hiroaki Fujimoto 1996-02-27
5378180 Exhaust system for outboard motor Manabu Nakayama, Kouji Abe, Atsushi Isogawa 1995-01-03