TK

Takahiro Koyama

SO Sony: 22 patents #1,822 of 25,231Top 8%
FC Fuji Electric Co.: 14 patents #147 of 2,643Top 6%
SI Sumitomo Light Metal Industries: 7 patents #12 of 254Top 5%
DE Denso: 3 patents #3,857 of 11,792Top 35%
Ricoh Company: 3 patents #4,826 of 9,818Top 50%
DI Daicel Chemical Industries: 2 patents #308 of 893Top 35%
FI Fujifilm Business Innovation: 2 patents #2,833 of 5,238Top 55%
UA Uacj: 1 patents #113 of 238Top 50%
Canon: 1 patents #14,899 of 19,416Top 80%
PA Panasonic: 1 patents #13,264 of 21,108Top 65%
NC Nishina Industrial Co.: 1 patents #14 of 25Top 60%
EM Elpida Memory: 1 patents #419 of 692Top 65%
FC Fujimori Kogyo Co.: 1 patents #43 of 112Top 40%
TI Toyota Industries: 1 patents #904 of 1,610Top 60%
MC Morinaga Milk Industry Co.: 1 patents #142 of 303Top 50%
DA Daicel: 1 patents #265 of 523Top 55%
PS Ps4 Luxco S.A.R.L.: 1 patents #127 of 276Top 50%
📍 Matsumoto, JP: #8 of 18 inventorsTop 45%
Overall (All Time): #39,914 of 4,157,543Top 1%
59
Patents All Time

Issued Patents All Time

Showing 51–59 of 59 patents

Patent #TitleCo-InventorsDate
6638376 Aluminum alloy piping material having an excellent corrosion resistance and workability Yoshiharu Hasegawa, Haruhiko Miyachi, Hirokazu Tanaka, Yoshifusa Shoji, Toshihiko Fukuda 2003-10-28
6638377 Aluminum alloy piping material for automotive piping excelling in corrosion resistance and workability Hirokazu Tanaka, Yoshifusa Shoji 2003-10-28
6129143 Brazing sheet having an excellent corrosion resistance for use in a heat exchanger, and a heat exchanger using the same Yoshiharu Hasegawa, Haruhiko Miyachi, Yuji Suzuki, Hiroshi Ikeda, Hirokazu Tanaka +1 more 2000-10-10
5268078 Aluminum plates for automobile body panels and method of pretreatment for painting thereof Yoshihumi Hasegawa, Tatsumi Takahashi 1993-12-07
5176963 Aluminum plates for automobile body panels and method of pretreatment for painting thereof Yoshihumi Hasegawa, Tatsumi Takahashi 1993-01-05
4784848 Waving lotion composition 1988-11-15
4584370 Process for the production of calcium cellulose glycolate Jun Taguchi, Hiroomi Kobayashi 1986-04-22
4508893 Process for the preparation of a powdery calcium cellulose glycolate Haruo Matsumura, Teturo Morita 1985-04-02
4267198 Melt-coated preparation containing sorbic acid Kazuo Sato, Akira Asahi 1981-05-12