MI

Masaaki Igarashi

Canon: 20 patents #3,238 of 19,416Top 20%
SI Sumitomo Metal Industries: 20 patents #5 of 1,462Top 1%
Ricoh Company: 9 patents #2,462 of 9,818Top 30%
NM Nippon Steel & Sumitomo Metal: 7 patents #120 of 1,491Top 9%
HI Hitachi: 1 patents #17,742 of 28,497Top 65%
NS National Institute For Materials Science: 1 patents #361 of 901Top 45%
MM Mitsubishi Mining: 1 patents #886 of 2,247Top 40%
Overall (All Time): #40,425 of 4,157,543Top 1%
59
Patents All Time

Issued Patents All Time

Showing 26–50 of 59 patents

Patent #TitleCo-InventorsDate
8293169 Ni-base heat resistant alloy Hiroyuki Semba, Atsuro Iseda, Hiroyuki Hirata, Kaori Kawano, Osamu Miyahara 2012-10-23
8137613 Austenitic stainless steel welded joint and austenitic stainless steel welding material Takahiro Osuki, Kazuhiro Ogawa, Hirokazu Okada 2012-03-20
8071020 High strength Cr-Ni alloy material and seamless pipe for oil well Yohei Otome, Hisashi Amaya, Hirokazu Okada 2011-12-06
7935303 Low alloy steel Takashi Nakashima, Kaori Kawano 2011-05-03
7898676 Image forming device, image forming method, image forming program, and recording medium Akira Ogawa 2011-03-01
7749431 Stainless steel for high-pressure hydrogen gas Hiroyuki Semba, Mitsuo Miyahara, Kazuhiro Ogawa, Tomohiko Omura 2010-07-06
7731895 Austenitic Fe-Ni-Cr alloy Hirokazu Okada, Kazuhiro Ogawa, Yasutaka Noguchi 2010-06-08
7662244 Martensitic stainless steel and method for manufacturing same Mitsuru Yoshizawa, Kunio Kondo, Yuichi Komizo 2010-02-16
7531129 Stainless steel for high-pressure hydrogen gas Hiroyuki Semba, Mitsuo Miyahara, Kazuhiro Ogawa, Tomohiko Omura 2009-05-12
7393597 Welded joint made of an austenitic steel Kazuhiko Ogawa, Hiroyuki Semba, Tomohiko Omura, Mitsuo Miyahara 2008-07-01
7361236 Martensitic stainless steel Kunio Kondo, Takahiro Kushida, Yuichi Komizo 2008-04-22
7128791 Heat-resistant martensite alloy excellent in high-temperature creep rupture strength and ductility and process for producing the same Toshiaki Horiuchi, Fujio Abe 2006-10-31
6918968 Austenitic stainless steel Hiroyuki Semba 2005-07-19
D474790 Binoculars 2003-05-20
D456443 Printer 2002-04-30
D452700 Paper cassette for printer 2002-01-01
6299704 Heat resisting steel containing a ferrite or tempered martensite structure Seiichi Muneki 2001-10-09
D438560 Ink tank for printer Manabu Inoue, Osamu Morita 2001-03-06
6129999 High-strength welded steel structures having excellent corrosion resistance Masakatsu Ueda, Kazuhiro Ogawa, Kunio Kondo 2000-10-10
D428623 Computer printer 2000-07-25
D424612 Ink tank for printer Manabu Inoue, Osamu Morita 2000-05-09
D424102 Computer printer 2000-05-02
D423568 Ink tank for printer Manabu Inoue, Osamu Morita 2000-04-25
D418864 Paper feeding device for computer printer 2000-01-11
D413300 Battery pack for printer 1999-08-31