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Orient Chemical Industries, Ltd.

USPTO Granted Patents = 129

% Expired Patents = 14.7

EPO Patents = 17

Trademarks = 12

Forward Citations = 1,069

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99 inventors (with patents filed for the assignee):

Yasuhiro Yamasaki (20 out of 20 patents)

Kazuaki Sukata (20 out of 23 patents)

Shun-ichiro Yamanaka (16 out of 17 patents)

4. Takashi Ono (15 out of 17 patents)

5. Tatsuya Yagyu (15 out of 17 patents)

6. Masashi Yasumatsu (12 out of 15 patents)

7. Shuji Sugawara (12 out of 16 patents)

8. Tetsuji Kihara (11 out of 14 patents)

9. Tohru Tsuruhara (10 out of 10 patents)

10. Kazuyoshi Kuroda (9 out of 11 patents)

11. Kenji Takaki (8 out of 8 patents)

12. Motoomi Arakawa (8 out of 11 patents)

13. Yoji Kawagishi (8 out of 9 patents)

14. Sohko Itoh (7 out of 8 patents)

15. Masahiro Otsuka (7 out of 7 patents)

Core Competencies:

Laser Welding

Charge Control Agent

Thermoplastic Resin

Electrophotographic Toner

Ink Composition

Organic-Inorganic Hybrid

Colored Resin

Photoreceptor

Granulated Colorant

Polymorph Production

Aqueous Ink

Metal Compound

129 patents: Sort by Forward Citations

1. 12767829 - Colorant, master batch containing same, colored resin composition, and molded article (2026-10-20),

2. 8535472 - Laser-welded article (2013-09-17),

3. 8470912 - Granulated colorant and related art (2013-06-25),

4. RE44290 - Laser-welded article (2013-06-10),

5. RE44045 - Laser-welded article (2013-03-04),

6. 8361625 - Interlayer film for laminated glass and laminated glass (2013-01-29),

7. 8168780 - Method for producing a specific polymorph of titanylphthalocyanine (2012-05-01),

8. 8105431 - Subphthalocyanine derivative having phosphorus derivative as axially substituted group, method for manufacturing the same and optical film using the same (2012-01-31),

9. 8053570 - Method for producing α-form titanylphthalocyanine and electrophotographic photoreceptor comprising α-form titanylphthalocyanine (2011-11-08),

10. 7960012 - Laser-welded article (2011-06-14),

11. 7960003 - Laser-welded article (2011-06-14),

12. 7879520 - Toner for developing electrostatic image and image formation process using it (2011-02-01),

13. 7875412 - Positive electrified charge control agent and positive electrified toner for developing electrostatic image (2011-01-25),

14. 7829733 - Change control resin particles and toner for developing electrostatic images (2010-11-09),

15. 7744804 - Laser-transmissible composition and method of laser welding (2010-06-29),

Company Overview

Orient Chemical Industries, Ltd., based in Osaka, Japan, specializes in advanced laser welding technology and related materials. The company focuses on developing innovative solutions in areas such as charge control agents, thermoplastic resins, and electrophotographic toners. Their expertise extends to ink compositions and organic-inorganic hybrids, contributing to the production of colored resins and photoreceptors. Orient Chemical is committed to enhancing manufacturing processes and product performance through cutting-edge research and development in these specialized fields.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

129 Patents

#99 in Osaka

#954 in Japan

#6,229 in the World

Orient Chemical Industries, Ltd.

Forward Citations = 1,069

99 inventors:

Yasuhiro Yamasaki (20 out of 20 patents)

Kazuaki Sukata (20 out of 23 patents)

Shun-ichiro Yamanaka (16 out of 17 patents)

4. Takashi Ono (15 out of 17 patents)

5. Tatsuya Yagyu (15 out of 17 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Orient Chemical Industries, Ltd.. Retrieved from https://idiyas.com/company/orient-chemical-industries

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

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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