Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
KA

Katsutoshi Ando — 43 Patents

Sony: 25 patents #1,512 of 25,231Top 6%
TIToray Industries: 14 patents #113 of 3,690Top 4%
Honda Motor Co.: 4 patents #5,328 of 21,052Top 30%
CCCemedine Co.: 1 patents #31 of 60Top 55%
NCNihon Parkerizing Co.: 1 patents #112 of 330Top 35%
Overall (All Time): #70,245 of 4,157,543Top 2%
43 Patents All Time

Issued Patents All Time

Showing 26–43 of 43 patents

Patent #TitleCo-InventorsDate
7590294 Image compression apparatus and method, and program and recording medium Takahiro Fukuhara 2009-09-15
7575644 Solution for treating metal surface, surface treating method, and surface treated material Hideki Takakuwa, Yuko Takanashi, Yasuhito Murai 2009-08-18
6979161 Bolt structure for use with a magnesium alloy member for tightening magnesium alloy members with each other or with a heterogenenous material Eiji Suzuki, Kenichi Kitayama, Yoichiro Inaba 2005-12-27
6659702 Bolting structure for magnesium alloy member Kenichi Kitayama, Yoichiro Inaba, Kozo Kusumoto, Eiji Suzuki 2003-12-09
6136409 Nonwoven fabric, filter medium and process for producing the same Goro Kondo, Koji Sugano 2000-10-24
5888653 Heat-sensitive mimeograph stencil Yukio Kawatsu, Kenji Tsunashima, Katsuya Toyoda, Hideyuki Yamauchi, Kenji Kida 1999-03-30
5556618 Antibacterial electret material Masanori Takahashi, Goro Kondou 1996-09-17
5429848 Electret tubular nonwoven fabric comprising circumferentially oriented parallel reinforcing fibers within a tubular nonwoven fabric Nobuo Kurata, Yoshiharu Okumura, Kouji Sugano 1995-07-04
5429847 Tubular nonwoven fabric comprising circumferentially oriented parallel reinforcing fibers within a tubular nonwoven fabric Nobuo Kurata, Yoshiharu Okumura, Kouji Sugano 1995-07-04
5296061 Process for producing a tubular nonwoven fabric and tubular nonwoven fabric produced by the same Nobuo Kurata, Yoshiharu Okumura, Kouji Sugano 1994-03-22
5266369 Packaging material made of electret material and packaging method Katsuya Ogawa, Eiichi Nishiura, Yoshiharu Okumura, Yoshikazu Ii 1993-11-30
5206061 Dust-proof headgear Ryoichi Togashi 1993-04-27
5057710 Electret materials and the method for preparing the electret materials Eiichi Nishiura 1991-10-15
5051159 Non-woven fiber sheet and process and apparatus for its production Ryoichi Togashi 1991-09-24
4948515 Filter for liquid and method of filtering liquid Yoshiharu Okumura 1990-08-14
4874659 Electret fiber sheet and method of producing same Yo Ogawa 1989-10-17
4656081 Smooth nonwoven sheet Nishiura Eiichi 1987-04-07
4622263 Water absorbing webs Eiichi Nishiura, Yoshiyuki Yamamoto 1986-11-11