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For the Inventor, By the Inventor

Osaka, Japan

Iwao Sumiyoshi

This inventor holds 11 USPTO granted patents. Top assignees: Nippon Paint Compnay, Ltd., Sumitomo Metal Industries, Inc.. Active years: 1980-1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Iwao Sumiyoshi. Retrieved from https://idiyas.com/inventor/iwao-sumiyoshi

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

USPTO Granted Patents = 11

% Patents Active = 100.0

Average Co-Inventor Count = 3.2

ph-index = 7

Forward Citations = 271(Granted Patents)


Company Filing History:

goldMedal11 out of 827 
 
Nippon Paint Compnay, Ltd.
 patents
silverMedal1 out of 929 
 
Sumitomo Metal Industries, Inc.
 patents
where one patent can have more than one assignee

Years Active: 1980-1999

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11 patents (USPTO):Explore Patents
1. 5863679 - Method for forming thin film pattern (1999-01-26),
2. 5858614 - Photosensitive composition for volume hologram recording (1999-01-12),
3. 5776764 - Polysilane type photosensitive resin composition and method for forming (1998-07-07),
4. 5702846 - Photosensitive composition for volume hologram recording (1997-12-30),
5. 5665494 - Photosensitive composition for volume hologram recording (1997-09-09),
6. 5496903 - Near infrared polymerizable composition (1996-03-05),
7. 5453340 - Photosensitive composition for volume hologram recording (1995-09-26),
8. 5391442 - Method of forming color pattern on a polysilane layer (1995-02-21),
9. 5368990 - Photopolymerizable composition (1994-11-29),
10. 5279864 - Radiation curable primer coating compositions (1994-01-18),
11. 4210713 - Photo-curable composition for coating containing an unsaturated urethane (1980-07-01),

Title: Iwao Sumiyoshi: Innovator in Thin Film Technology

Introduction

Iwao Sumiyoshi is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of thin film technology, holding a total of 11 patents. His work has been instrumental in advancing methods for creating precise thin film patterns.

Latest Patents

Among his latest patents is a method for forming a thin film pattern that boasts excellent accuracy. This innovative method involves specific steps that enhance the precision of the pattern formation. Another notable patent is a photosensitive composition designed for volume hologram recording. This composition is utilized for recording interference fringes produced by coherent laser beams or lights, resulting in a fringe with a different refractive index.

Career Highlights

Throughout his career, Iwao Sumiyoshi has worked with reputable companies such as Nippon Paint Company, Ltd. and Sumitomo Metal Industries, Inc. His experience in these organizations has allowed him to apply his innovative ideas in practical settings, contributing to advancements in technology.

Collaborations

Iwao has collaborated with notable individuals in his field, including Masami Kawabata and Akihiko Sato. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Iwao Sumiyoshi's contributions to thin film technology and his impressive portfolio of patents highlight his role as a key innovator in the industry. His work continues to influence advancements in various applications, showcasing the importance of innovation in technology.

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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