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Tokujiro Okuno

This inventor holds 50 USPTO granted patents and 5 published patent applications and 10 EPO patents, primarily in Image Reading Technology. Top assignee: Seiko Epson Corporation. Active years: 2002-2025.

USPTO Granted Patents = 50 (Patent Applications = 5)

% Patents Active = 88.0

EPO Patents = 10 (Patent Applications = 14)

Average Co-Inventor Count = 2.6

ph-index = 6

Forward Citations = 143(Granted Patents)

Forward Citations (Not Self Cited) = 133(Dec 10, 2025)

Location History:

Nagano-ken, JP (2002 - 2011)
Nagano, JP (2008 - 2015)
Matsumoto, JP (2010 - 2015)
Fukuoka, JP (2015 - 2021)
Kitakyushu, JP (2010 - 2023)

Company Filing History:

50 out of 34,209

Seiko Epson Corporation

patents

Years Active: 2002-2025

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Areas of Expertise:

Image Reading Apparatus

Medium Feeding Device

Liquid Ejecting System

Liquid Supply Apparatus

Medium Transport Apparatus

Recording Apparatus

Liquid Container

Fluid Consuming Device

Ink Cases

Electrical Connector

Document Positioning Plate

Movable Apparatus Body

50 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12231606 - Image reading apparatus (2025-02-18),

2. 11787653 - Medium feeding device and image reading apparatus (2023-10-17),

3. 11729330 - Image reading apparatus (2023-08-15),

4. 11724904 - Medium-transporting device and image reading apparatus (2023-08-15),

5. 11523014 - Image reading apparatus incliding an upper unit and a lower unit disposed vertically below the upper unit, the upper unit includes a feed tray configured to support a document fed at an incline of 45 degrees or more, a discharge tray supports a document discharged such that the document is inclined at an agle of 45 degrees or more, the lower unit includes a document positioning plate on which a document is mounted and a second reader (2022-12-06),

6. 11509785 - Medium transport apparatus and image reading apparatus (2022-11-22),

7. 11489979 - Reading apparatus with a first medium transport path coupled to a second medium transport path and a third medium transport path, where the third medium transport path inclined at an angle smaller than the angle formed by the second medium transport path inclined with the first transport medium path (2022-11-01),

8. 11438474 - Image reading apparatus with movable apparatus body (2022-09-06),

9. 11343399 - Image reading apparatus (2022-05-24),

10. 11203498 - Medium feeding apparatus and image reading apparatus (2021-12-21),

11. 11134162 - Image reading apparatus and opening/closing apparatus (2021-09-28),

12. 11117768 - Medium feeding device and image reading apparatus (2021-09-14),

13. 11019231 - Medium transport apparatus and image reading apparatus (2021-05-25),

14. 10863046 - Image reading apparatus (2020-12-08),

15. 10821738 - Liquid container, liquid consuming apparatus and electrical connector (2020-11-03),

Title: Tokujiro Okuno: Pioneering Inventor Shaping Technological Frontiers

Introduction:

Tokujiro Okuno, a visionary inventor hailing from Kitakyushu, Japan, stands as a beacon of unwavering dedication to innovation. With an impressive repertoire of 49 patents, Okuno's legacy is etched with brilliance and excellence in the realm of technology and beyond.

Latest Patents:

Among his latest patents, Tokujiro Okuno introduced groundbreaking inventions such as the Medium Feeding Device and Image Reading Apparatus. These innovations revolutionize the image reading process by incorporating skew detection mechanisms and optimizing image resolution based on specific setting information. Okuno's patents exemplify his commitment to advancing efficiency and precision in technology.

Career Highlights:

Tokujiro Okuno's professional journey unfolds at Seiko Epson Corporation, where his inventive spirit found fertile ground for exploration and realization. Through his tenure at Seiko Epson Corporation, Okuno has continually pushed the boundaries of technological advancement, leaving an indelible mark on the industry.

Collaborations:

In his quest for innovation, Tokujiro Okuno has collaborated with esteemed colleagues such as Yoshiyuki Tanaka and Katsutomo Tsukahara. Together, they have synergized their expertise and creativity to push the limits of technological possibilities, paving the way for cutting-edge solutions and advancements in the field.

Conclusion:

Tokujiro Okuno's legacy as a trailblazing inventor is a testament to his relentless pursuit of excellence and his profound impact on the world of technology. His inventive prowess continues to shape the landscape of innovation, inspiring future generations to strive for greatness in the ever-evolving realm of technological advancement.

Profile summary based on public USPTO records.

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