Shigeyoshi Umezawa

This inventor holds 5 USPTO granted patents. Top assignees: Matsushita Electric Industrial Co., Ltd., Matsushita Electric Industrial. Active years: 2001-2005.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeyoshi Umezawa. Retrieved from https://idiyas.com/inventor/shigeyoshi-umezawa

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

USPTO Granted Patents = 5

% Patents Active = 60.0

Average Co-Inventor Count = 3.3

ph-index = 3

Forward Citations = 33(Granted Patents)

Location History:

Tsuruga, JP (2001)
Fukui, JP (2002 - 2005)

Company Filing History:

4 out of 27,375

Matsushita Electric Industrial Co., Ltd.

patents

1 out of 33

Matsushita Electric Industrial

patents

Years Active: 2001-2005

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5 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6951404 - Illumination knob and method of manufacturing knob (2005-10-04),

2. 6621224 - Light-controlling device used for vehicle (2003-09-16),

3. 6580039 - Multidirectional switch and operation unit using the same (2003-06-17),

4. 6359243 - Multi-directional operating switch and electronic device using the same (2002-03-19),

5. 6329755 - Light adjustment device for a vehicle (2001-12-11),

Title: Shigeyoshi Umezawa: Innovator in Illumination Technology

Introduction

Shigeyoshi Umezawa is a notable inventor based in Fukui, Japan. He has made significant contributions to the field of illumination technology, holding a total of 5 patents. His innovative designs focus on enhancing the functionality and efficiency of lighting devices.

Latest Patents

Umezawa's latest patents include an illumination knob and a light-controlling device used for vehicles. The illumination knob features a unique design that includes an elastic pawl, which securely holds the knob components in place while ensuring optimal light transmission. The light-controlling device is designed to turn off both incandescent lamps and LEDs simultaneously, providing a seamless user experience as the illumination decreases.

Career Highlights

Throughout his career, Umezawa has worked with prominent companies, including Matsushita Electric Industrial Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects.

Collaborations

Umezawa has collaborated with talented individuals such as Yoshiyuki Nakade and Hitokazu Shitanaka. These partnerships have fostered creativity and innovation in his work.

Conclusion

Shigeyoshi Umezawa's contributions to illumination technology demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of user needs and technological advancements.

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]