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Seiko Epson Kabushiki Kaisha

USPTO Granted Patents = 49

Trademarks = 134

Forward Citations = 1,076

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80 inventors (with patents filed for the assignee):

Sadao Kanbe (4 out of 51 patents)

Hiroshi Mukai (3 out of 31 patents)

Katsumori Takei (3 out of 24 patents)

4. Yoshio Shionozaki (3 out of 9 patents)

5. Haruo Osafune (3 out of 5 patents)

6. Yoshitaka Itoh (2 out of 58 patents)

7. Shuhei Yamada (2 out of 27 patents)

8. Hideya Yokouchi (2 out of 35 patents)

9. Tsuyoshi Obikawa (2 out of 10 patents)

10. Tomoe Aruga (2 out of 43 patents)

11. Masanobu Motoki (2 out of 4 patents)

12. Yoshitaka Yamaguchi (2 out of 5 patents)

13. Tadashi Sugiyama (2 out of 4 patents)

14. Minoru Hosokawa (2 out of 15 patents)

15. Yoichi Wakai (2 out of 4 patents)

Core Competencies:

Liquid Crystal Displays

Ink Jet Printing

Electrothermal Printing

Magneto-Optical Systems

Portable Devices

Optical Fibers

Thin Film Transistors

Printer Cartridges

Television Receivers

Magnetic Recording Media

Semiconductor Fabrication

Ophthalmic Lenses

49 patents: Sort by Forward Citations

1. 5007015 - Portable compact device (1991-04-09),

2. 4912582 - Floppy disk drive system with improved record/playback heads (1990-03-27),

3. 4879060 - 2-phenylpyridine derivatives and liquid crystal compositions including (1989-11-07),

4. 4826332 - Printer including cartridge mounted interchangeable read only memory (1989-05-02),

5. 4825314 - Disc drive (1989-04-25),

6. 4779250 - Magneto-optical signal read-out system using divided photodetector (1988-10-18),

7. 4769649 - Imprinting apparatus (1988-09-06),

8. 4757409 - Carriage movement device for a magnetic memory device (1988-07-12),

9. 4746304 - Connection apparatus for connecting electrical devices (1988-05-24),

10. 4745589 - Objective lens actuator having movements restricting control means for (1988-05-17),

11. 4743096 - Liquid crystal video display device having pulse-width modulated 'ON' (1988-05-10),

12. 4725862 - Ink jet wetting-treated recording head and process (1988-02-16),

13. 4716403 - Liquid crystal display device (1987-12-29),

14. 4709991 - Liquid crystal display with barrier layer to reduce permeability (1987-12-01),

15. 4707154 - Printer (1987-11-17),

Seiko Epson Kabushiki Kaisha (commonly known as Epson) is a Japanese electronics company and one of the world's largest manufacturers of computer printers, information and imaging related equipment. With a focus on innovative and environmentally friendly technologies, Epson offers a wide range of products including printers, projectors, scanners, and industrial automation equipment. Epson is committed to contributing to a sustainable society through its products and services.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

49 Patents

#707 in Tokyo

#1,702 in Japan

#13,874 in the World

Seiko Epson Kabushiki Kaisha

Forward Citations = 1,076

80 inventors:

Sadao Kanbe (4 out of 51 patents)

Hiroshi Mukai (3 out of 31 patents)

Katsumori Takei (3 out of 24 patents)

4. Yoshio Shionozaki (3 out of 9 patents)

5. Haruo Osafune (3 out of 5 patents)

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