Hyogo, Japan

Masashi Sangen

This inventor holds 16 USPTO granted patents. Top assignees: Matsushita Electronics Corporation, Matsushita Electric Industrial Co., Ltd., Matsushita Electrical Industrial Co., Ltd.. Active years: 1988-1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masashi Sangen. Retrieved from https://idiyas.com/inventor/masashi-sangen

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


% Patents Active = 100.0

Average Co-Inventor Count = 2.6

ph-index = 7

Forward Citations = 99(Granted Patents)


Location History:

  • Kobe, JP (1989)
  • Hyogo, JP (1988 - 1997)
  • Kyoto, JP (1998)

Company Filing History:


Years Active: 1988-1998

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16 patents (USPTO):Explore Patents

Title: **Masashi Sangen: A Pioneer in Illumination Technology**

Introduction

Masashi Sangen, an accomplished inventor from Hyogo, Japan, has made significant contributions to the field of lighting technology, holding an impressive total of 16 patents. His innovative designs focus on enhancing the efficiency and performance of fluorescent lamps, thereby paving the way for advancement in modern illumination solutions.

Latest Patents

One of Masashi Sangen's latest inventions is a groundbreaking circular fluorescent lamp. This invention is designed to provide a compact and efficient lighting solution while maintaining high output power. The circular fluorescent lamp features a reduced non-luminant region and exhibits favorable characteristics of luminous intensity distribution. The innovative design includes concentrically arranged circular arc tubes that are disposed on the same plane, with electrodes attached to one side. These tubes are bridged together near the non-electrode side, forming a discharge path between electrodes. With specific dimensions for the outer and inner circular arc tubes, this design optimizes lamp lumen output and performance.

Career Highlights

Masashi Sangen has been associated with prominent electronic companies, including Matsushita Electronics Corporation and Matsushita Electric Industrial Co., Ltd. His work at these institutions has significantly influenced the development of lighting technologies, building upon his patented inventions.

Collaborations

Throughout his career, Masashi Sangen has collaborated with talented individuals such as Takeshi Matsumura and Naoyuki Nakamura. These collaborations have fostered a vibrant exchange of ideas, culminating in innovative solutions that advance the field of lighting technology.

Conclusion

Masashi Sangen stands out as a visionary inventor who has significantly impacted the lighting industry through his innovative design of circular fluorescent lamps. His substantial portfolio of patents reflects a commitment to enhancing illumination technology, asserting his position as a key figure in the realm of inventions.

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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