RN

Ryuji Ninomiya

MC Mitsui Mining & Smelting Co.: 6 patents #80 of 838Top 10%
Nissan Motor Co.: 2 patents #3,090 of 8,689Top 40%
DJ Doryokuro Kakunenryo Kaihatsu Jigyodan: 1 patents #104 of 393Top 30%
Overall (All Time): #663,621 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
6531003 Abrasion resistant copper alloy, copper alloy powder for build-up cladding, and engine cylinder head Takeshi Ojiro, Koichi Miyake, Makoto Kano, Kenji Tsushima, Hidenobu Matsuyama +1 more 2003-03-11
6103976 Wire and cable for use in robot Shigeru Kobayashi, Shuzo Suzuoka, Hidefusa Takahara 2000-08-15
5993736 Lead-free tin-silver-based soldering alloy Junichi Matsunaga, Yuunosuke Nakahara 1999-11-30
5958333 Tin-silver-based soldering alloy Junichi Matsunaga 1999-09-28
5911949 Abrasion resistant copper alloy Takeshi Ojiro, Makoto Kano, Hidenobu Matsuyama 1999-06-15
5718868 Lead-free tin-zinc-based soldering alloy Junichi Matsunaga 1998-02-17
5658528 Lead-free solder Junichi Matsunaga 1997-08-19
5093098 Method of controlling water/hydrogen isotopic exchange reaction plant Shigeru Yoshizumi, Shiko Kiyota, Takuya Kitabata 1992-03-03