MY

Masaaki Yamashita

NC Nkk Co.: 26 patents #2 of 1,173Top 1%
YC Yanmar Holdings Co.: 12 patents #13 of 636Top 3%
PL Pfu Limited: 10 patents #40 of 478Top 9%
NC Nippon Kokan Co.: 7 patents #18 of 735Top 3%
JS Jfe Steel: 6 patents #281 of 1,401Top 25%
KC Kansai Paint Co.: 5 patents #120 of 822Top 15%
Tdk: 4 patents #1,273 of 3,796Top 35%
DC Dai Nippon Toryo Co.: 1 patents #73 of 196Top 40%
Overall (All Time): #31,953 of 4,157,543Top 1%
67
Patents All Time

Issued Patents All Time

Showing 26–50 of 67 patents

Patent #TitleCo-InventorsDate
7128518 Working vehicle 2006-10-31
D529932 Tractor Kunihiko Sakamoto, Hiroaki Ayabe, Seiji Sakada, Makiko Tajima 2006-10-10
7063889 Resin film and manufacturing method for the same, and resin laminated metal sheet using said resin film and manufacturing method for the same Yasuhide Yoshida, Hiroki Iwasa, Hiroshi Kubo, Takeshi Suzuki, Akihiko Furuta +1 more 2006-06-20
D523027 Tractor Kunihiko Sakamoto, Hiroaki Ayabe, Seiji Sakada, Makiko Tajima 2006-06-13
6861160 Zinc-based plated steel sheet and method for manufacturing same Junichi Inagaki, Masaki Tada, Yoshiharu Sugimoto, Satoru Ando 2005-03-01
6797411 Galvanized steel sheet, method for manufacturing the same, and method for manufacturing press-formed product Yasuhiro Sodani, Yukio Kimura, Masayasu Ueno, Shogo Tomita, Hisato Noro +6 more 2004-09-28
6699592 Galvannealed steel sheet and method for manufacturing the same Shoichiro Taira, Yoshiharu Sugimoto, Junichi Inagaki, Toru Imokawa, Shuji Nomura +7 more 2004-03-02
6677053 Surface-treated steel sheet and production method therefor Takafumi Yamaji, Kenji Morita, Akira Matsuzaki, Etsuo Hamada 2004-01-13
6652406 Transmission 2003-11-25
6617048 Prepainted steel sheet and method for producing the same Keiji Yoshida, Kazumi Ito, Hiroyuki Kato, Yasuhiro Toyoda, Yasuyuki Kajita +2 more 2003-09-09
6610422 Coated steel sheet and method for manufacturing the same Toshihiko Ooi, Takafumi Yamaji, Keiji Yoshida, Yuichiro Tanaka, Junichi Inagaki +5 more 2003-08-26
6562474 Coated steel sheet having excellent corrosion resistance and method for producing the same Naoto Yoshimi, Satoru Ando, Masaru Sagiyama, Akihiko Furuta, Akira Matsuzaki +6 more 2003-05-13
6509099 Phosphate-treated steel plate Kazuya Urata, Takahiro Kubota, Masaru Sagiyama, Satoru Ando, Tatsuya Miyoshi 2003-01-21
6280535 Manufacturing process on chromate-coated lead-containing galvanized steel sheet with anti-black patina property and anti-white rust property Tatsuya Miyoshi, Takahiro Kubota, Masaru Sagiyama, Yoshiharu Sugimoto 2001-08-28
6172774 Structure for supporting optical unit of image reader 2001-01-09
6136455 Coating composition for precoated steel sheet, precoated steel sheet, and process for preparing the same Takashi Anyashiki, Keiji Yoshida, Masaru Sagiyama, Yasuyuki Kajita, Hiroyuki Kato +5 more 2000-10-24
6015628 Organic composite coated steel sheet with good press formability and perforation corrosion resistance Kazuya Urata, Naoto Yoshimi, Takahiro Kubota, Yasuhiko Haruta 2000-01-18
5997664 Method for producing galvanized steel sheet Kenji Tahara, Junichi Inagaki, Toyofumi Watanabe 1999-12-07
5861218 Zinciferous plated steel sheet and method for manufacturing same Michitaka Sakurai, Akira Hiraya, Junichi Inagaki, Takayuki Urakawa, Satoshi Hashimoto +2 more 1999-01-19
5849423 Zinciferous plated steel sheet and method for manufacturing same Takayuki Urakawa, Toru Imokawa, Michitaka Sakurai, Jun Inagaki, Shuji Nomura 1998-12-15
5846660 Organic composite coated steel plate Kenichi Sasaki, Yoshiharu Sugimoto 1998-12-08
5795660 Organic composite coated steel sheet having a high corrosion resistance in a rust-contaminated environment Naoto Yoshimi, Takahiro Kubota, Takashi Ishiyama, Yasuhiko Haruta 1998-08-18
5720477 Paper-feeding device Yuukichi Morita, Yoshiki Saeki, Mituhiro Yashiki, Hideaki Taniguchi, Nobuhisa Yamazaki 1998-02-24
5641578 Weldable black steel sheet Naoto Yoshimi, Toshiyuki Ookuma, Tatsuya Miyoshi, Toyofumi Watanabe, Tsutomu Watanabe 1997-06-24
5609968 Weldable colored steel sheet Naoto Yoshimi, Toyofumi Watanabe, Toshiyuki Ookuma, Tatsuya Miyoshi 1997-03-11