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USPTO Patent Rankings Data through Dec 31, 2025
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Akio Owatari — 25 Patents

SESeiko Epson: 21 patents #845 of 7,774Top 15%
NCNippon Paper Industries Co.: 2 patents #176 of 535Top 35%
EPEpson: 2 patents #14 of 66Top 25%
OCOrient Chemical Industries Co.: 1 patents #67 of 105Top 65%
SJSeiko Epson Corporation, A Japanese: 1 patents #1 of 10Top 10%
SKShinshu Seiki Kabushiki Kaisha: 1 patents #14 of 38Top 40%
TCTomoeagawa Paper Co.: 1 patents #110 of 226Top 50%
Shiojiri, JP: #144 of 760 inventorsTop 20%
Overall (All Time): #158,593 of 4,157,543Top 4%
25 Patents All Time
Akio Owatari has been granted 25 US patents while listed as an inventor at Seiko Epson. The first was granted in 1982 and the most recent in October 2009. Akio Owatari ranks #158,593 of 4,157,543 US inventors in our database (top 3.8%). Patent records list Akio Owatari in Shiojiri, JP.

Issued Patents All Time

Showing 1–25 of 25 patents

Patent #TitleCo-InventorsDate
7601417 Recorded matter having countermeasure against forging Hiroto Nakamura, Masataka Kamijo, Yasuko Hirano 2009-10-13
7408630 Recorded article with anti-counterfeit measures Hiroto Nakamura, Masataka Kamijo, Yasuko Hirano 2008-08-05
6455169 Inkjet recording sheet Kiyoshi Iwamoto, Senichi Yoshizawa, Hiroyuki Onishi, Masaaki Itano 2002-09-24
6409330 Sublimation transfer ink jet recording method and ink composition for use therein Hiroto Nakamura, Hidehiko Komatsu 2002-06-25
6277457 Cleaning sheet and recording medium set including the same cleaning sheet Hiroyuki Onishi, Junichi Iida 2001-08-21
6242529 Aqueous ink jet compositions comprising a hydrophobic polymer functionalized polyuronic acid dispersent, and method of using William Marritt 2001-06-05
6174611 Recording medium and ink jet recording method Hiroyuki Onishi, Junichi Iida, Yukio Kobayashi, Yoshihiro Kuroyama, Hiroki Midorikawa 2001-01-16
6095645 Ink jet recording method Hiroyuki Onishi, Junichi Iida 2000-08-01
6059405 Ink-jet recording apparatus Seiji Mochizuki, Shuichi Yamaguchi 2000-05-09
6030674 Cleaning sheet and recording medium set including the same cleaning sheet Hiroyuki Onishi, Junichi Iida 2000-02-29
5948154 Color ink set for ink-jet recording Hiroko Hayashi, Etsuko Yoshiike, Miharu Kanaya, Yoshiyuki Koike, Yasuhiro Ouki 1999-09-07
5928787 Ink jet recording medium Hiroyuki Onishi, Junichi Iida, Yukio Kobayashi, Yoshihiro Kuroyama, Hiroki Midorikawa 1999-07-27
5844583 Ink jet recording method and apparatus providing a plurality of image resolutions with the same amount of ink per dot Hiroyuki Onishi, Junichi Iida, Masaaki Itano, Hiroaki Tojo 1998-12-01
5795970 Mixed disazo-dye composition and black aqueous ink composition containing the same that provides high grade image on print Takashi Ono, Tatsuya Yagyu, Yoshihiro Sawatari, Masaki Sasaki, Miharu Kanaya +2 more 1998-08-18
5781215 Ink jet recording method Hiroyuki Onishi, Junichi Iida 1998-07-14
5753016 Ink composition excellent in reproduction of black color and ink jet recording method using the same Hiroko Hayashi, Miharu Kanaya, Yasuhiro Ouki 1998-05-19
5704969 Aqueous ink composition and method of recording using the same Miharu Kanaya 1998-01-06
5662997 Ink jet recording film comprising cation-modified polyvinyl alcohol and recording method using the same Hiroyuki Onishi, Junichi Iida 1997-09-02
5616174 Ink composition and ink jet recording method using the same Miharu Kanaya, Junko Takatsuna, Masahiro Yatake, Hiroko Hayashi, Takashi Ono +2 more 1997-04-01
5092926 Ink-jet printing ink 1992-03-03
4973992 Ink jet printing apparatus 1990-11-27
4849773 Ink jet recording apparatus 1989-07-18
4489334 Immersible oxygen absorbing capsule for ink jet fluid supply 1984-12-18
4421559 Jet printing ink composition 1983-12-20
4352691 Liquid ink for printers Yuki Yamada 1982-10-05