NK

Nobuyuki Kitagawa

Sumitomo Electric Industries: 18 patents #1,247 of 21,551Top 6%
NC Namiki Precision Jewel Co.: 1 patents #12 of 47Top 30%
SH Sumitomo Electric Hardmetal: 1 patents #204 of 278Top 75%
📍 Itami, JP: #174 of 1,436 inventorsTop 15%
Overall (All Time): #258,013 of 4,157,543Top 7%
18
Patents All Time

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDate
8920079 Joined product Kimihiro Ozaki, Keizo Kobayashi, Hideki Moriguchi, Tomoyuki Ishida, Akihiko Ikegaya 2014-12-30
6183846 Coated hard metal material Hideki Moriguchi, Akihiko Ikegaya, Katsuya Uchino 2001-02-06
6077596 Coated hard tool having multi-layer coating Yasuhisa Hashimoto, Kazuo Yamagata 2000-06-20
6057046 Nitrogen-containing sintered alloy containing a hard phase Keiichi Tsuda, Kazutaka Isobe, Akihiko Ikegaya 2000-05-02
6017172 Ceramic insert for use with clamp type cutting tool Harutoshi Ukegawa, Matsuo Higuchi, Shingo Hirota 2000-01-25
5981049 Coated tool and method of manufacturing the same Hisanori Ohara, Hiroshi Arimoto, Reizo Murakami, Kazuo Noguchi, Yasutaka Okada 1999-11-09
5947651 Indexable insert Daisuke Murakami, Norihide Kimura, Reizo Murakami, Akihiko Ikegaya 1999-09-07
5939651 Titanium-based alloy Kazutaka Isobe, Isao Yamazaki 1999-08-17
5871850 Coated hard metal material Hideki Moriguchi, Akihiko Ikegaya, Katsuya Uchino 1999-02-16
5624766 Cemented carbide and coated cemented carbide for cutting tool Hideki Moriguchi, Toshio Nomura, Mitsunori Kobayashi, Katsuya Uchino, Kazuo Yamagata 1997-04-29
5603071 Method of preparing cemented carbide or cermet alloy Toshio Nomura 1997-02-11
5577424 Nitrogen-containing sintered hard alloy Kazutaka Isobe, Keiichi Tsuda, Toshio Nomura 1996-11-26
5403373 Hard sintered component and method of manufacturing such a component Toshio Nomura 1995-04-04
5403374 Watch exterior parts and manufacturing method thereof Toshio Nomura, Yoichi Yaguchi, Hidehiro Uchiumi, Naoko Iwashimizu 1995-04-04
5354534 Method for manufacturing sintered parts Toshio Nomura, Katuyosi Saito 1994-10-11
5228812 Throw-away tipped drill Kazuo Noguchi, Yoshikatsu Mori, Toshio Nomura, Kazutaka Isobe 1993-07-20
4971485 Cemented carbide drill Toshio Nomura, Kazutaka Isobe 1990-11-20
4769070 High toughness cermet and a process for the production of the same Masaaki Tobioka, Yasuhiro Shimizu, Kazutaka Isobe, Toshio Nomura, Kunihiro Takahashi 1988-09-06