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For the Inventor, By the Inventor

Yokohama, Japan

Kazuyoshi Okamura

This inventor holds 10 USPTO granted patents and 2 published patent applications and 1 EPO patent. Top assignees: Toshiba Lighting & Technology Corporation, Osram-Melco Toshiba Lighting Ltd., Kabushiki Kaisha Toshiba. Active years: 1990-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuyoshi Okamura. Retrieved from https://idiyas.com/inventor/kazuyoshi-okamura

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

USPTO Granted Patents = 10 

% Patents Active = 100.0

 

Average Co-Inventor Count = 3.9

ph-index = 5

Forward Citations = 114(Granted Patents)


Location History:

  • Yokosuka, JP (1997)
  • Yokohama, JP (1993 - 1999)
  • Tokyo, JP (1990 - 2006)

Company Filing History:

goldMedal9 out of 663 
 
Toshiba Lighting & Technology Corporation
 patents
silverMedal4 out of 6 
 
Osram-Melco Toshiba Lighting Ltd.
 patents
bronzeMedal1 out of 53,276 
 
Kabushiki Kaisha Toshiba
 patents
where one patent can have more than one assignee

Years Active: 1990-2006

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10 patents (USPTO):Explore Patents
1. D520150 - Halogen bulb (2006-05-02),
2. D513641 - Halogen bulb (2006-01-17),
3. D512788 - Halogen bulb (2005-12-13),
4. D509310 - Halogen bulb (2005-09-06),
5. 5994823 - High-pressure discharge lamp, turning-on circuit device, and lighting (1999-11-30),
6. 5668440 - Nitride layer for discharge lamps (1997-09-16),
7. 5276385 - High-pressure discharge lamp and lighting method (1994-01-04),
8. D334071 - Sodium lamp (1993-03-16),
9. 5182486 - Ceramic electric-discharge lamp incorporating arc tube having at least (1993-01-26),
10. 4950953 - High pressure sodium lamp with sodium amalgam of controlled amount (1990-08-21),

Title: Kazuyoshi Okamura - Innovator in High-Intensity Discharge Lamp Technology

Introduction

Kazuyoshi Okamura is an inventor based in Yokohama-Shi, Japan. He has made significant contributions to the field of lighting technology, particularly in high-intensity discharge lamps. Although he currently holds no granted patents, his innovative ideas are reflected in his latest patent applications.

Latest Patent Applications

Kazuyoshi Okamura's recent patent applications include a high-intensity discharge lamp and lighting device. This invention features an arc tube with a heat-resistant translucent discharge vessel that forms a discharge space. The design incorporates an electrode structure and a discharge medium composed of a light-emitting metal, including mercury, along with a starting gas. The support member is electrically connected to the electrode structure and holds the arc tube, which is sealed within an outer bulb. The electrode structure includes a hermetically sealed electrode shaft with a tip portion inside the discharge vessel, a coiled electrode wound around the tip, and a unique recessed or protruding portion on the electrode shaft. Additionally, he has developed a coating liquid for a diffusing film of high-pressure discharge lamps, which includes silica particles with varying shapes and curvatures.

Conclusion

Kazuyoshi Okamura's work in high-intensity discharge lamp technology showcases his innovative spirit and dedication to advancing lighting solutions. His latest patent applications reflect his commitment to improving the efficiency and functionality of lighting devices.

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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