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Orient Chemical Industries, Ltd.

USPTO Granted Patents = 128

EPO Patents = 17

Trademarks = 13

Forward Citations = 1,063

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95 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

Electrophotographic Photoreceptor

Charge Control Agent

Colored Thermoplastic Resins

Organic-Inorganic Hybrid Materials

Ink Composition

Toner Development

Polymorph Production

Subphthalocyanine Derivatives

Granulated Colorants

U-Oxo Crosslinked Compounds

Aqueous Pigment Dispersion

128 patents: Sort by Forward Citations

1. 8535472 - Laser-welded article (2013-09-17),

2. 8470912 - Granulated colorant and related art (2013-06-25),

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

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

5. 8361625 - Interlayer film for laminated glass and laminated glass (2013-01-29),

6. 8168780 - Method for producing a specific polymorph of titanylphthalocyanine (2012-05-01),

7. 8105431 - Subphthalocyanine derivative having phosphorus derivative as axially substituted group, method for manufacturing the same and optical film using the same (2012-01-31),

8. 8053570 - Method for producing α-form titanylphthalocyanine and electrophotographic photoreceptor comprising α-form titanylphthalocyanine (2011-11-08),

9. 7960012 - Laser-welded article (2011-06-14),

10. 7960003 - Laser-welded article (2011-06-14),

11. 7879520 - Toner for developing electrostatic image and image formation process using it (2011-02-01),

12. 7875412 - Positive electrified charge control agent and positive electrified toner for developing electrostatic image (2011-01-25),

13. 7829733 - Change control resin particles and toner for developing electrostatic images (2010-11-09),

14. 7744804 - Laser-transmissible composition and method of laser welding (2010-06-29),

15. 7714045 - Colored thermoplastic resin compositions for laser welding, anthraquinone colorants therefor and molded product therfrom (2010-05-11),

Orient Chemical Industries, Ltd. is a leading chemical company specializing in the production of high-quality chemicals for various industrial applications. With a strong focus on innovation and customer satisfaction, Orient Chemical Industries delivers cutting-edge solutions that meet the specific needs of its clients. The company is committed to sustainability and environmental responsibility, ensuring that its production processes adhere to strict standards. Orient Chemical Industries prides itself on its highly skilled workforce and state-of-the-art facilities, enabling it to consistently deliver superior products and services to its global customer base.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

128 Patents

#91 in Osaka

#939 in Japan

#6,098 in the World

Orient Chemical Industries, Ltd.

Forward Citations = 1,063

95 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)

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