YF

Yukio Fujiwara

Ricoh Company: 24 patents #864 of 9,818Top 9%
Mitsubishi Electric: 4 patents #7,099 of 25,717Top 30%
TW The Japan Steel Works: 2 patents #158 of 643Top 25%
ND Nitto Denko: 1 patents #1,580 of 2,479Top 65%
OC Osaka Gas Co.: 1 patents #252 of 689Top 40%
YC Yachiyo Industry Co.: 1 patents #61 of 139Top 45%
MM Mitsubishi Materials: 1 patents #812 of 1,543Top 55%
NC Nippon Steel Welding Products And Engineering Co.: 1 patents #20 of 53Top 40%
Overall (All Time): #101,979 of 4,157,543Top 3%
34
Patents All Time

Issued Patents All Time

Showing 26–34 of 34 patents

Patent #TitleCo-InventorsDate
8043777 Electrophotographic photoconductor, process cartridge, and image forming apparatus Hidetoshi Kami, Tetsuro Suzuki, Hiroshi Tamura, Hiroshi Ikuno 2011-10-25
7914959 Image bearing member, image forming method, and image forming apparatus Yoshinori Inaba, Tetsuro Suzuki, Hiroshi Tamura, Hidetoshi Kami, Tetsuya Toshine 2011-03-29
7718335 Image bearing member, and image forming apparatus and process cartridge using the same Tetsuro Suzuki, Hiroshi Tamura, Hidetoshi Kami, Tetsuya Toshine, Yoshinori Inaba 2010-05-18
6062386 Bundled welding wire coil and method of bundling Satoshi Inoue, Ichiro Masuda, Toru Ono 2000-05-16
6011459 Voltage-dependent non-linear resistor member, method for producing the same and arrester Kei Kobayashi, Tomoaki Kato, Yoshio Takada, Osamu Wada, Masahiro Kobayashi +3 more 2000-01-04
5910761 Voltage-dependent non-linear resistor member, method for producing the same and arrester Kei Kobayashi, Tomoaki Kato, Yoshio Takada, Osamu Wada, Masahiro Kobayashi +3 more 1999-06-08
5421768 Abrasive cloth dresser Keiichi Shirai, Fumio Inoue 1995-06-06
4507701 Lighting arrester with leakage current detection Seiji Sonoyama, Mitsumasa Imataki 1985-03-26
4234902 Enclosed lightning arrester Shigeru Yamaji, Yoshikazu Shibuya, Tohei Nitta 1980-11-18