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For the Inventor, By the Inventor

Chiba, Japan

Takaaki Hikosaka

This inventor holds 17 USPTO granted patents and 5 published patent applications and 8 EPO patents, primarily in Polycarbonate Materials. Top assignees: Idemitsu Kosan Company, Limited, Dow Corning Toray Silicone Company Limited, Toyo Ink Manufacturing Company. Active years: 2000-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takaaki Hikosaka. Retrieved from https://idiyas.com/inventor/takaaki-hikosaka

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 17 

% Patents Active = 76.5

 

Average Co-Inventor Count = 2.1

ph-index = 4

Forward Citations = 61(Granted Patents)


Location History:

  • Sodegaura, JP (2000 - 2020)
  • Chiba, JP (2004 - 2022)

Company Filing History:

goldMedal16 out of 2,283 
 
Idemitsu Kosan Company, Limited
 patents
silverMedal1 out of 523 
 
Dow Corning Toray Silicone Company Limited
 patents
bronzeMedal1 out of 223 
 
Toyo Ink Manufacturing Company
 patents
where one patent can have more than one assignee

Years Active: 2000-2022

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Areas of Expertise:
Polycarbonate Resin
Electrophotographic Photoreceptor
Coating Liquid
Bischloroformate Compound
Polycarbonate Copolymer
Optical Material
Electrophotographic Device
Toner Binder
Crosslinked Polycarbonate
17 patents (USPTO):Explore Patents
1. 11269263 - Bischloroformate composition, bischloroformate composition production method, bischloroformate composition-containing solution, polycarbonate resin, polycarbonate resin production method, coating liquid, electrophotographic photoreceptor, and electrophotographic device (2022-03-08),
2. 10787541 - Polycarbonate resin, method for producing polycarbonate resin, coating liquid, electrophotographic photoreceptor, and electrophotography device (2020-09-29),
3. 9494883 - Electrophotographic photoreceptor and resin composition (2016-11-15),
4. 9188887 - Polycarbonate copolymer, coating fluid using same, electrophotographic photoreceptor, and method for producing polycarbonate copolymer (2015-11-17),
5. 8519082 - Polycarbonate copolymer, coating liquid using same, and electrophotographic photosensitive body (2013-08-27),
6. 8470957 - Method for producing bischloroformate compound, polycarbonate oligomer having small number of monomers and solution containing bischloroformate compound (2013-06-25),
7. 8344092 - Method for producing bischloroformate compound, polycarbonate oligomer having small number of monomers and solution containing bischloroformate compound (2013-01-01),
8. RE43604 - Polycarbonate resin and electrophotographic photosensitive member using same (2012-08-27),
9. 8207288 - Polycarbonate polymer, coating liquid, and electrophotographic photosensitive body (2012-06-26),
10. 8043775 - Electrophotographic photosensitive body (2011-10-25),
11. 7893185 - Polycarbonate copolymer, method for producing the same, molded body, optical material, and electrophotographic photosensitive body (2011-02-22),
12. 7888455 - Polycarbonate copolymer, method for producing the same, molded body, optical material, and electrophotographic photosensitive body (2011-02-15),
13. 7491346 - Polycarbonate resin and electrophotographic photosensitive member using same (2009-02-17),
14. 6756170 - Electrostatic image developing toner and image-forming method using the same (2004-06-29),
15. 6538063 - Resin composition, binder resin for toner and toner (2003-03-25),

Title: The Innovations of Takaaki Hikosaka: A Pioneer in Bischloroformate Chemistry

Introduction: Takaaki Hikosaka, based in Chiba, Japan, is a distinguished inventor known for his significant contributions to the field of chemistry, particularly in the development of bischloroformate compositions and polycarbonate resins. With a total of 17 patents to his name, Hikosaka has been instrumental in advancing the understanding and applications of these materials.

Latest Patents: Hikosaka’s recent innovations include several patents centered around bischloroformate compositions. These include methods for producing bischloroformate compositions, bischloroformate composition-containing solutions, and the development of coatings and electrophotographic devices. One of his notable patents outlines a bischloroformate composition characterized by a specific formula containing multiple Ar components, displaying a calculated average number of monomer units ranging from 1.0 to 1.99. Furthermore, his work on polycarbonate resins, which hold a yellow index of 30 or less in solid form, showcases his prowess in enhancing materials with desired optical properties.

Career Highlights: Takaaki Hikosaka's career includes significant roles in prominent companies such as Idemitsu Kosan Company, Limited and Dow Corning Toray Silicone Company Limited. His tenure at these organizations has allowed him to refine his research and develop innovative products that highlight his expertise in chemical production methods and material science.

Collaborations: Throughout his career, Hikosaka has collaborated with esteemed colleagues like Hideyuki Miyamoto and Kengo Hirata. Their synergistic efforts have fostered a rich environment for innovation, leading to breakthroughs in the applications of the technologies developed by Hikosaka.

Conclusion: Takaaki Hikosaka is a notable figure in the world of innovation, with a wealth of patents that reflect his dedication to improving chemical processes and materials. His work continues to influence various industries, underscoring the importance of creativity and research in advancing technological frontiers.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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