Nara, Japan

Masatoshi Arai

This inventor holds 27 USPTO granted patents, primarily in Semiconductor Fabrication. Top assignees: Matsushita Electric Industrial Co., Ltd., Panasonic Corporation, Maxell, Ltd.. Active years: 1999-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masatoshi Arai. Retrieved from https://idiyas.com/inventor/masatoshi-arai-0kh5f1n2

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


% Patents Active = 77.8

Average Co-Inventor Count = 2.8

ph-index = 8

Forward Citations = 240(Granted Patents)


Location History:

  • Ikoma, JP (1999 - 2005)
  • Osaka, JP (1999 - 2006)
  • Nara, JP (1999 - 2011)
  • Kyoto, JP (2006 - 2022)

Company Filing History:


Years Active: 1999-2022

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Areas of Expertise:
Light Source Device
Projector
Lighting Device
Semiconductor Device
Nonvolatile Memory
Hybrid Semiconductor
Fabrication Method
Charging Effects
Conductive Sidewall
Memory Arrays
Poly-Metal Gate
Active Areas
27 patents (USPTO):Explore Patents

Title: **Masatoshi Arai: A Pioneer in Light Source Innovations from Nara, Japan**

Introduction

Masatoshi Arai is a noteworthy inventor hailing from Nara, Japan, with an impressive portfolio of 27 patents to his name. His contributions primarily focus on light source technologies, which have influenced various applications in projectors and lighting devices. Arai's innovations are characterized by their functionality and ingenuity, reflecting his expertise in the field.

Latest Patents

Among his latest patents, Masatoshi Arai has developed sophisticated light source devices. One notable invention is a light source device that incorporates an excitation-light source emitting excitation light, paired with a reflection member for reflecting this light. The design also features a lens that refracts the excitation light, housed in an airtight housing with an adjustment mechanism to optimize the optical path length between the reflection member and lens.

Another significant patent involves a light source device that efficiently generates excitation light through a wavelength conversion member, which includes a phosphor layer to convert the excitation light into fluorescence. This patent also highlights an innovative converging optical system that integrates a converging lens, ensuring the excitation light effectively converges on the phosphor layer while maintaining the housing's integrity.

Career Highlights

Masatoshi Arai's career includes significant positions at leading companies in the electronics industry. He has worked at Matsushita Electric Industrial Co., Ltd. and Panasonic Corporation, where he honed his skills and contributed to groundbreaking innovations in light sources and related technologies. His tenure at these esteemed organizations has played a crucial role in his development as a prominent inventor.

Collaborations

Throughout his career, Arai has collaborated with talented individuals in the field, including coworkers Toshiki Yabu and Mizuki Segawa. These collaborations have fostered a creative environment for innovation, allowing Arai to further refine his concepts and introduce cutting-edge technologies.

Conclusion

Masatoshi Arai's dedication to innovation in light source devices has solidified his reputation as a key player in the field. With 27 patents to his credit, his work continues to inspire and shape future advancements in lighting technology. As he continues his journey, the impact of his inventions will undoubtedly resonate within the industry for years to come.

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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