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For the Inventor, By the Inventor

Shizuoka, Japan

Masakazu Nagasawa

This inventor holds 16 USPTO granted patents. Top assignees: Koito Manufacturing Company, Ltd., Koito Seisakusho Co., Ltd.. Active years: 1982-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masakazu Nagasawa. Retrieved from https://idiyas.com/inventor/masakazu-nagasawa

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

USPTO Granted Patents = 16

% Patents Active = 100.0

Average Co-Inventor Count = 3.5

ph-index = 7

Forward Citations = 184(Granted Patents)


Location History:

  • Shimizu, JP (1982 - 1996)
  • Shizuoka, JP (1993 - 2003)

Company Filing History:

goldMedal15 out of 2,310 
 
Koito Manufacturing Company, Ltd.
 patents
silverMedal1 out of 59 
 
Koito Seisakusho Co., Ltd.
 patents

Years Active: 1982-2003

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16 patents (USPTO):Explore Patents
1. 6616494 - Method and apparatus for supplying pellets to arc tube for discharge lamp (2003-09-09),
2. 6557379 - Method of producing an arc tube (2003-05-06),
3. 6547619 - ARC tube for discharge lamp unit and method of manufacturing same (2003-04-15),
4. 6321799 - Method and apparatus for supplying mercury to arc tube for discharge lamp (2001-11-27),
5. 5936349 - Arc tube having a pair of molybdenum foils, and method for its (1999-08-10),
6. 5757110 - Electrical discharge lamp with ultraviolet filtering globe having rear (1998-05-26),
7. 5505648 - Contamination-free method of making arc tubes (1996-04-09),
8. 5463270 - Insulating base for discharge lamp device (1995-10-31),
9. 5432399 - Discharge lamp apparatus (1995-07-11),
10. 5286227 - Arc tube and method for manufacturing the same (1994-02-15),
11. 5220235 - Discharge lamp device (1993-06-15),
12. 5186671 - Manufacturing method of discharge lamp electrode (1993-02-16),
13. 5177397 - Discharge lamp assembly with insulating tubular member and metal band (1993-01-05),
14. 5059855 - Discharge lamp base construction (1991-10-22),
15. 4769574 - Incandescent lamp with a metal coupling to a plastic lamp base for (1988-09-06),

Title: Masakazu Nagasawa: Innovator in Discharge Lamp Technology

Introduction

Masakazu Nagasawa is a prominent inventor based in Shizuoka, Japan. He has made significant contributions to the field of discharge lamp technology, holding a total of 16 patents. His innovative approaches have paved the way for advancements in lighting solutions.

Latest Patents

Among his latest patents is a method and apparatus for supplying pellets to an arc tube for discharge lamps. This invention involves a pair of chucks that grip the end portions of a cylindrical glass tube blank. These chucks are moved toward each other by a chuck moving mechanism, allowing softened glass in the intermediate portion to be gathered. This process forms a shape suitable for blow molding a light-emitting tube portion. A laser position detector is utilized to detect the position of one chuck, ensuring precise control of the approach distances, even in the presence of variations or deformations in the mechanism.

Career Highlights

Nagasawa has worked with notable companies such as Koito Manufacturing Company, Ltd. and Koito Seisakusho Co., Ltd. His experience in these organizations has contributed to his expertise in the field of lighting technology.

Collaborations

Throughout his career, Nagasawa has collaborated with talented individuals, including Yukio Wakimizu and Shinichi Irisawa. These partnerships have fostered innovation and creativity in his projects.

Conclusion

Masakazu Nagasawa's contributions to discharge lamp technology and his impressive portfolio of patents highlight his role as a key innovator in the industry. His work continues to influence advancements in lighting solutions.

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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