Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Chieko Mihara — 49 Patents

Canon: 49 patents #758 of 19,416Top 4%
Hiratsuka, JP: #58 of 2,583 inventorsTop 3%
Overall (All Time): #55,592 of 4,157,543Top 2%
49 Patents All Time
Chieko Mihara has been granted 49 US patents while listed as an inventor at Canon. The first was granted in 1991 and the most recent in May 2022. Chieko Mihara ranks #55,592 of 4,157,543 US inventors in our database (top 1.3%). Patent records list Chieko Mihara in Hiratsuka, JP.

Patents per Year

Patents granted per year, 1991 to 2022Bar chart with a peak of 7 patents in 2008.peak 71991: 2 patents19911993: 3 patents1994: 1 patents1995: 2 patents19951996: 3 patents1997: 1 patents1998: 2 patents19981999: 1 patents2001: 2 patents2002: 1 patents20022004: 2 patents2005: 3 patents2006: 1 patents20062007: 1 patents2008: 7 patents2009: 6 patents20092010: 2 patents2011: 1 patents2012: 1 patents20122017: 1 patents2018: 2 patents2019: 2 patents20192020: 1 patents2022: 1 patents2022

Issued Patents All Time

Showing 1–25 of 49 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11332597 Photo-curable composition and patterning method using the same Toshiki Ito, Kanae Kawahata, Motoki Okinaka, Youji Kawasaki 2022-05-17 $36,000
10535519 Photocurable composition, method for forming a pattern, and method for producing a photocured product Yohei Murayama, Toshiki Ito, Motoki Okinaka 2020-01-14 $21,000
10472445 Photocurable composition and method for manufacturing film Toshiki Ito, Naoko Matsufuji, Kenji Kitagawa 2019-11-12 $16,000
10233274 Curable composition and patterning method using the same Toshiki Ito, Motoki Okinaka 2019-03-19 $27,000
9982102 Photocurable composition and method of manufacturing film using the composition Toshiki Ito, Youji Kawasaki 2018-05-29 $33,000
9961776 Method of producing cured product and method of forming pattern Tatsuya Suzuki, Toshiki Ito 2018-05-01 $32,000
9704710 Photocured product and method for producing the same Yohei Murayama, Toshiki Ito, Motoki Okinaka 2017-07-11 $33,000
8178271 Polymer having a sulfonic group or a sulfonate group and an amide group and method of producing same Tatsuki Fukui, Takashi Kenmoku, Ako Kusakari, Tetsuya Yano, Norikazu Fujimoto 2012-05-15 $95,000
8067136 Charge control agent, toner, image forming method, and image forming apparatus Tetsuya Yano, Takashi Kenmoku, Tatsuki Fukui, Ako Kusakari 2011-11-29 $176,000
7795363 Polymer having a sulfonic group or a sulfonate group and an amide group and method of producing same Tatsuki Fukui, Takashi Kenmoku, Ako Kusakari, Tetsuya Yano, Norikazu Fujimoto 2010-09-14 $158,000
7682765 Toner for developing electrostatic images Etsuko Sugawa, Takashi Kenmoku, Tatsuki Fukui, Shinya Kozaki, Tsutomu Honma +2 more 2010-03-23 $164,000
7638194 Developer carrying member, and developing assembly Tatsuki Fukui, Tetsuya Yano, Takashi Kenmoku, Ako Kusakari, Norikazu Fujimoto 2009-12-29 $275,000
7638590 Polyhydroxyalkanoate having amide, sulfonic acid or sulfonate ester group, charge control agent and toner Tatsuki Fukui, Tetsuya Yano, Shinya Kozaki, Tsutomu Honma, Takashi Kenmoku +1 more 2009-12-29 $275,000
7589156 Polyhydroxyalkanoic acid having ester, carboxyl or sulfonic acid group, and producing method therefor Takashi Kenmoku, Tatsuki Fukui, Ako Kusakari, Tetsuya Yano 2009-09-15 $423,000
7557176 Polyhydroxyalkanoic acid having vinyl, ester, carboxyl or sulfonic acid group and producing method therefor Takashi Kenmoku, Tatsuki Fukui, Ako Kusakari, Tetsuya Yano 2009-07-07 $356,000
7553922 Polyhydroxyalkanoate having ester group, carboxyl group, and sulfonic group, and method of producing the same Takashi Kenmoku, Tatsuki Fukui, Ako Kusakari, Tetsuya Yano 2009-06-30 $431,000
7510813 Resin-coated carrier for electrophotographic developer Tetsuya Yano, Takashi Kenmoku, Tatsuki Fukui, Ako Kusakari, Norikazu Fujimoto 2009-03-31 $323,000
7470768 Polyhydroxyalkanoate having vinyl group, ester group, carboxyl group, and sulfonic group, and method of producing the same Takashi Kenmoku, Tatsuki Fukui, Ako Kusakari, Tetsuya Yano 2008-12-30 $377,000
7465779 Polyhydroxyalkanoate having vinyl group, ester group, carboxyl group and sulfonic acid group, and production method thereof Takashi Kenmoku, Tatsuki Fukui, Ako Kusakari, Tetsuya Yano 2008-12-16 $366,000
7459517 Polyhydroxyalkanoate, process for preparing the same, and resin composition containing the polyhydroxyalkanoate Tatsuki Fukui, Tetsuya Yano, Shinya Kozaki, Tsutomu Honma, Takashi Kenmoku 2008-12-02 $206,000
7452960 Polyhydroxyalkanoate copolymer, resin composition, molded product, toner, image forming method and image forming apparatus Tetsuya Yano, Shinya Kozaki, Tsutomu Honma, Takashi Kenmoku, Tatsuki Fukui 2008-11-18 $296,000
7425432 Polyhydroxy alkanoate copolymer including within molecule unit having vinyl group or carboxyl group in side chain, and producing method therefor Takashi Kenmoku, Tetsuya Yano, Shinya Kozaki, Tsutomu Honma, Tatsuki Fukui +2 more 2008-09-16 $332,000
7399568 Carrier for electrophotographic developer Tatsuki Fukui, Tetsuya Yano, Takashi Kenmoku, Ako Kusakari, Norikazu Fujimoto 2008-07-15 $639,000
7393912 Polyhydroxyalkanoate containing amide group, sulfonic group, and sulfonate ester group, method for producing the same, and charge control agent, toner, image forming method, and image forming apparatus Tetsuya Yano, Shinya Kozaki, Tsutomu Honma, Takashi Kenmoku, Tatsuki Fukui +1 more 2008-07-01 $619,000
7291679 Recyclable polymer and process for production thereof Hiroshi Maehara, Yoshihiko Kikuchi 2007-11-06 $436,000