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USPTO Patent Rankings Data through Dec 31, 2025
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Junichi Nagahora — 18 Patents

UNUnknown: 17 patents #282 of 83,584Top 1%
YKYkk: 10 patents #62 of 845Top 8%
YKYoshida Kogyo K.K.: 6 patents #69 of 468Top 15%
NTNtt Advanced Technology: 2 patents #9 of 188Top 5%
TCTeikoku Piston Ring Co.: 1 patents #41 of 95Top 45%
UNUnitika: 1 patents #257 of 620Top 45%
Yamaha: 1 patents #1,232 of 2,001Top 65%
MMMitsubishi Materials: 1 patents #812 of 1,543Top 55%
Yokohama, JP: #5,752 of 49,234 inventorsTop 15%
Overall (All Time): #245,716 of 4,157,543Top 6%
18 Patents All Time
Junichi Nagahora has been granted 18 US patents while listed as an inventor at Unknown. The first was granted in 1992 and the most recent in September 2003. Junichi Nagahora ranks #245,716 of 4,157,543 US inventors in our database (top 5.9%). Patent records list Junichi Nagahora in Yokohama, JP.

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6627008 Grooved substrates for multifiber optical connectors and for alignment of multiple optical fibers and method for production thereof Takeshi Taniguchi, Toshio Arai 2003-09-30 $1,892,000
6450696 Optical connector ferrules and method for production thereof Kazuo Omiya, Takeshi Taniguchi 2002-09-17
6274082 Process for producing shaped article Koju Tachi, Koji Saito, Teruaki Onogi 2001-08-14
6213649 Sleeve for optical connector ferrules and method for production thereof Kazuo Omiya, Takeshi Taniguchi 2001-04-10
6189600 Method and apparatus for production of amorphous alloy article formed by metal mold casting under pressure Takeshi Taniguchi 2001-02-20
6158900 Ferrule for optical fiber connector and method for production thereof Kazuo Omiya, Takeshi Taniguchi, Akihisa Inoue 2000-12-12
6074497 Highly wear-resistant aluminum-based composite alloy and wear-resistant parts Akihisa Inoue, Masahiro Oguchi, Masato Otsuki, Toru Kohno, Shin Takeda +1 more 2000-06-13
6044893 Method and apparatus for production of amorphous alloy article formed by metal mold casting under pressure Takeshi Taniguchi 2000-04-04
5826456 Method for extrusion of aluminum alloy and aluminum alloy material of high strength and high toughness obtained thereby Masataka Kawazoe, Kenji Higashi 1998-10-27
5648174 Highly hard thin film and method for production thereof Hiroshi Yamagata, Akihisa Inoue, Tsuyoshi Masumoto 1997-07-15
5607523 High-strength aluminum-based alloy Tsuyoshi Masumoto, Akihisa Inoue, Toshisuke Shibata, Kazuhiko Kita 1997-03-04
5458700 High-strength aluminum alloy Tsuyoshi Masumoto, Akihisa Inoue, Mitsuru Watanabe, Toshisuke Shitata 1995-10-17
5397490 Magnetic material Tsuyoshi Masumoto, Akihisa Inoue 1995-03-14
5312495 Process for producing high strength alloy wire Tsuyoshi Masumoto, Akihisa Inoue, Hirokazu Yamamoto, Toshisuke Shibata 1994-05-17
5296059 Process for producing amorphous alloy material Tsuyoshi Masumoto, Akihisa Inoue, Kazuhiko Kita 1994-03-22
5221375 Corrosion resistant aluminum-based alloy Kazuo Aikawa, Katsumasa Ohtera, Hideki Takeda, Keiko Yamagata 1993-06-22
5209791 Process for producing amorphous alloy forming material Tsuyoshi Masumoto, Akihisa Inoue, Kazuhiko Kita 1993-05-11
5122205 Corrosion resistant aluminum-based alloy Tsuyoshi Masumoto, Akihisa Inoue, Katsumasa Ohtera, Kazuo Aikawa, Madoka Nakajima +1 more 1992-06-16