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For the Inventor, By the Inventor

Tokyo, Japan

Junji Isohata

This inventor holds 24 USPTO granted patents, primarily in Exposure Apparatus. Top assignee: Canon Kabushiki Kaisha. Active years: 1976-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Junji Isohata. Retrieved from https://idiyas.com/inventor/junji-isohata

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

USPTO Granted Patents = 24

% Patents Active = 87.5

Average Co-Inventor Count = 2.3

ph-index = 14

Forward Citations = 476(Granted Patents)


Location History:

  • Tokyo, JA (1976)
  • Kawasaki, JP (1983)
  • Tokyo, JP (1983 - 2007)

Company Filing History:

goldMedal24 out of 93,085 
 
Canon Kabushiki Kaisha
 patents

Years Active: 1976-2007

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Areas of Expertise:
Projection Exposure Mask
Exposure Apparatus
Flat Panel Display
Alignment Techniques
Wafer Orienting
Illuminating Systems
Surface Shape Control
Static Pressure Bearing
Conveyor Device
Focus Adjustment
Projection-Printing
Device Movement
24 patents (USPTO):Explore Patents
1. 7193684 - Projection exposure mask, projection exposure apparatus, and projection exposure method (2007-03-20),
2. 7158210 - Projection exposure apparatus (2007-01-02),
3. 7030962 - Projection exposure mask, projection exposure apparatus, and projection exposure method (2006-04-18),
4. 5359389 - Exposure apparatus including two illuminating systems and exposure (1994-10-25),
5. 5150152 - Exposure apparatus including device for determining movement of an object (1992-09-22),
6. 4998134 - Exposure apparatus (1991-03-05),
7. 4878086 - Flat panel display device and manufacturing of the same (1989-10-31),
8. 4864360 - Exposure apparatus (1989-09-05),
9. 4814830 - Flat panel display device and manufacturing of the same (1989-03-21),
10. 4768064 - Conveyor device for alignment (1988-08-30),
11. 4749867 - Exposure apparatus (1988-06-07),
12. 4748477 - Exposure apparatus (1988-05-31),
13. 4737824 - Surface shape controlling device (1988-04-12),
14. 4708466 - Exposure apparatus (1987-11-24),
15. 4708465 - Exposure apparatus (1987-11-24),

Title: Exploring the Innovations of Junji Isohata: A Leader in Projection Exposure Technologies

Introduction: Junji Isohata, based in Tokyo, Japan, is a distinguished inventor and engineer renowned for his contributions to the field of projection exposure technologies. With a remarkable portfolio of 24 patents to his name, Isohata's work plays a significant role in advancing the capabilities of imaging systems and manufacturing processes.

Latest Patents: Isohata's recent patents focus on cutting-edge projection exposure technologies. One notable patent describes a projection exposure mask that features both a first mask pattern for creating continuous patterns and a second mask pattern for discontinuous patterns. This innovative mask includes a reflecting type mask pattern and a transmitting type mask pattern, enhancing flexibility in exposure methodology. Another significant patent outlines a compact and cost-effective projection exposure apparatus designed for repeated pattern exposure. This device includes an intricate illumination system that facilitates the exposure of multiple columns of mask patterns onto a member, enabling efficient manufacturing processes.

Career Highlights: Currently, Junji Isohata is associated with Canon Kabushiki Kaisha, a leading company in imaging and optical products. His expertise in projection technologies has propelled his career, establishing him as a key figure in the development of advanced imaging solutions. Over the years, his innovations have contributed to the efficiency and effectiveness of various imaging applications.

Collaborations: Throughout his career, Isohata has collaborated with notable colleagues, including Hironori Yamamoto and Koichi Matsushita. These partnerships have fostered an environment of innovation, enabling the collective advancement of technologies in projection exposure systems.

Conclusion: Junji Isohata's contributions to the field of projection exposure technologies are invaluable. With his extensive patent portfolio and collaborative spirit, he continues to drive innovation at Canon Kabushiki Kaisha, paving the way for future advancements in imaging and manufacturing technologies. His work exemplifies the impact of dedicated inventors on the broader landscape of technology and industry.

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]
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