RW

Rikizo Watanabe

HI Hitachi: 1 patents #814 of 2,935Top 30%
UN Unknown: 1 patents #145 of 1,640Top 9%
Overall (1989): #17,532 of 140,708Top 15%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4882124 Alloys having excellent erosion resistance Toshihiro Uehara 1989-11-21
4802934 Single-crystal Ni-based super-heat-resistant alloy Takehiro Ohno 1989-02-07