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For the Inventor, By the Inventor

Tokyo, Japan

Shigeru Suga

This inventor holds 22 USPTO granted patents, primarily in Material Testing. Top assignees: Suga Test Instruments Co., Ltd., The Yokohama Rubber Co., Ltd., Other. Active years: 1976-1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeru Suga. Retrieved from https://idiyas.com/inventor/shigeru-suga

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

Calculating rank
USPTO Granted Patents = 22

% Patents Active = 100.0

Average Co-Inventor Count = 1.2

ph-index = 10

Forward Citations = 254(Granted Patents)


Location History:

  • Shibuya-ku, Tokyo, JA (1976)
  • Yoyogi Shibuya-ku, Tokyo, JP (1983)
  • Shibuya-ku, Tokyo, JP (1978 - 1986)
  • Shinjuku, JP (1987)
  • Shinjuku-ku, Tokyo, JP (1988)
  • Tokyo, JP (1979 - 1994)

Company Filing History:

goldMedal7 out of 20 
 
Suga Test Instruments Co., Ltd.
 patents
silverMedal3 out of 2,770 
 
The Yokohama Rubber Co., Ltd.
 patents
bronzeMedal15 out of 834,708 
Other
 patents
where one patent can have more than one assignee

Years Active: 1976-1994

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Areas of Expertise:
Light Fastness
Weather Resistance
Combustibility Testing
Ozone Concentration
Abrasion Resistance
Xenon Lamp
Colorimeter
Reflectivity Measurement
Electrode Mechanism
Accelerated Testing
Gloss Measurement
Test Apparatus
22 patents (USPTO):Explore Patents
1. 5305634 - Weathering test method and sample holder used therein (1994-04-26),
2. 5138892 - Accelerated light fastness test method (1992-08-18),
3. 4983526 - Method of measuring and controlling ozone concentration (1991-01-08),
4. 4975047 - Oven provided with oxygen concentration controls (1990-12-04),
5. 4954693 - Ventilation regulated hot air supplied constant temperature oven (1990-09-04),
6. 4831564 - Apparatus for estimating and displaying remainder of lifetime of xenon (1989-05-16),
7. 4717259 - Luster rating method and apparatus (1988-01-05),
8. 4704903 - Light fastness/weather resistance accelerated test machine with an air (1987-11-10),
9. 4627287 - Light-resistance tester for maintaining uniform temperature at surface (1986-12-09),
10. 4613235 - Method and apparatus for measuring gloss which correlates well with (1986-09-23),
11. 4544995 - Apparatus for testing light fastness of a material (1985-10-01),
12. 4519716 - Device for testing combustability (1985-05-28),
13. 4382226 - Electrolytic cell for actinometers (1983-05-03),
14. 4232971 - Integrating sphere type standard light source device (1980-11-11),
15. 4196611 - Testing apparatus for determining abrasion resistance of a surface (1980-04-08),

Title: Shigeru Suga: Innovator in Weathering Test Methods

Introduction

Shigeru Suga, based in Tokyo, Japan, is a distinguished inventor with a remarkable portfolio of 22 patents. His innovative approaches to testing materials under various environmental conditions have significantly advanced the field of material science.

Latest Patents

Among his latest contributions, Suga has developed a unique weathering test method and sample holder. This method utilizes a novel sample holder with metal coils that adjust according to temperature changes in the ambient air and the radiation heat from a light source. This process allows for thorough evaluation of a material's weather-fastness resistance by subjecting it to predetermined environmental conditions, including exposure to light and humidity, while applying various stresses on the sample.

Additionally, Suga has created an accelerated light fastness test method designed for materials used in specific air convection conditions. This method involves positioning a sample in such a way that it receives a desired intensity of light, while also ensuring that the temperature conditions mimicked during the testing correspond with those expected in actual usage scenarios.

Career Highlights

Throughout his career, Shigeru Suga has been affiliated with Suga Test Instruments Co., Ltd., where he has applied his innovative methodologies to enhance testing techniques in material science. His dedication to research and development has made notable contributions to industries reliant on material durability and performance.

Collaborations

Suga has collaborated with esteemed professionals such as Kenhachi Mitsuhashi and Etsuji Natori. These partnerships have enabled the exchange of ideas and expertise, further enriching Suga’s innovative approaches in his field.

Conclusion

Shigeru Suga's work in developing advanced testing methodologies is a testament to his inventive spirit and commitment to improving material science. His contributions, marked by 22 patents, reflect a profound understanding of the complexities of weathering effects on materials, ensuring that industries can rely on the durability and performance of their products.

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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