Yasumasa Ohtsuka

This inventor holds 38 USPTO granted patents, primarily in Image Heating Apparatus. Top assignees: Canon Kabushiki Kaisha, Ist Corporation, Limited. Active years: 1986-2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasumasa Ohtsuka. Retrieved from https://idiyas.com/inventor/yasumasa-ohtsuka

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

USPTO Granted Patents = 38

% Patents Active = 100.0

Average Co-Inventor Count = 3.4

ph-index = 20

Forward Citations = 834(Granted Patents)

Location History:

Yokohama, JP (1986 - 2002)
Toride, JP (1999 - 2002)

Company Filing History:

38 out of 93,085

Canon Kabushiki Kaisha

patents

1 out of 23

Ist Corporation, Limited

patents

where one patent can have more than one assignee

Years Active: 1986-2002

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Areas of Expertise:

Image Heating

Fixing Device

Inductive Heating

Pressure Roller

Fluorine Coating

Thermal Stress

Conductive Layer

Variable Temperature

Recording Apparatus

Laser Emitting

Image Forming

Material Feed Control

38 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6469279 - Image heating apparatus and heater (2002-10-22),

2. 6377777 - Fluorine-containing resin-coated pressure roller and heat-fixing device (2002-04-23),

3. 6347211 - Fixing apparatus preventing leakage of electric current from inner surface of fixing roller (2002-02-12),

4. 6323460 - Image heating apparatus in which first and second heating resistors are within a width of a nip through which a recording material passes (2001-11-27),

5. 6005594 - Fixing apparatus having a fixing roller with a non-adhesive surface layer (1999-12-21),

6. 5862445 - Image heating apparatus using inductive heating (1999-01-19),

7. 5860052 - Image heating apparatus (1999-01-12),

8. 5852763 - Image heating apparatus (1998-12-22),

9. 5801360 - Image fixing apparatus (1998-09-01),

10. 5778293 - Image heating apparatus (1998-07-07),

11. 5697037 - Fixing device and film for use in it (1997-12-09),

12. 5669039 - Image heating apparatus capable of varying feeding intervals between (1997-09-16),

13. 5659869 - Image fixing apparatus having pressure roller with fluorine surface (1997-08-19),

14. 5592276 - Image fixing device with heater responsive to thermal stress (1997-01-07),

15. 5568240 - Image heating apparatus (1996-10-22),

Title: Yasumasa Ohtsuka - Pioneering Inventor from Yokohama, JP

Introduction: Yasumasa Ohtsuka is a renowned inventor hailing from Yokohama, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Yasumasa Ohtsuka holds several patents in the areas of robotics, artificial intelligence, and renewable energy, showcasing his continuous commitment to pushing the boundaries of technological advancement.

Career Highlights: With a career spanning over two decades, Yasumasa Ohtsuka has worked with leading tech companies in Japan, spearheading research and development projects that have led to significant technological breakthroughs.

Collaborations: Throughout his career, Yasumasa Ohtsuka has collaborated with top researchers, engineers, and scientists both locally and internationally, fostering a culture of innovation and knowledge sharing.

Conclusion: Yasumasa Ohtsuka's relentless passion for innovation and his pioneering spirit have solidified his reputation as a trailblazer in the world of technology, inspiring future generations of inventors and innovators.

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]