HO

Hatsuhiko Oikawa

NM Nippon Steel & Sumitomo Metal: 8 patents #93 of 1,491Top 7%
TL Toyota Central R&D Labs: 2 patents #528 of 1,657Top 35%
NS Nippon Steel: 2 patents #1,308 of 4,423Top 30%
TO Toyota: 1 patents #15,335 of 26,838Top 60%
Overall (All Time): #415,522 of 4,157,543Top 10%
12
Patents All Time

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
10406627 Resistance spot welding method Hiroki Fujimoto, Shintaro Yamanaka, Takashi Imamura 2019-09-10
10265797 Resistance spot welding method Hiroki Fujimoto, Shintaro Yamanaka 2019-04-23
10081071 Arc spot welded joint and manufacturing method thereof Seiji Furusako, Shinji Kodama, Yasunobu Miyazaki 2018-09-25
10081073 Spot welded joint Fuminori Watanabe, Tomohito Tanaka, Seiji Furusako, Yasunobu Miyazaki, Hideki Hamatani 2018-09-25
10040145 Spot welding method of high-strength steel sheets excellent in joint strength Seiji Furusako, Yasunobu Miyazaki 2018-08-07
9970116 Al-plated steel sheet used for hot pressing and method for manufacturing Al-plated steel sheet used for hot pressing Soshi Fujita, Shintaro Yamanaka, Jun Maki, Hiroki Fujimoto, Hideaki IRIKAWA 2018-05-15
9610648 Spot welded joint and spot welding method Hideki Hamatani, Masafumi Azuma, Noriyuki Suzuki, Fuminori Watanabe, Naoki Maruyama +1 more 2017-04-04
8979104 Front body structure Toshiyuki Niwa, Masayoshi Suehiro, Atsushi Seto, Takeshi Kawachi, Masaaki Mizumura +6 more 2015-03-17
8962149 Spot welded joint Hideki Hamatani, Masafumi Azuma, Noriyuki Suzuki, Fuminori Watanabe, Naoki Maruyama +1 more 2015-02-24
5783794 Method and material for resistance welding steel-base metal sheet to aluminum-base metal sheet Yasuo Takahashi, Tohru Saito, Yutaka Okuda, Kazuo Narita, Fuminori Matsuda +2 more 1998-07-21
4794044 Method for surface treatment Tohru Arai 1988-12-27
4778540 Method for surface treatment and treating material therefor Tohru Arai 1988-10-18