Minowa, Japan

Katsuyoshi Takeshita

This inventor holds 8 USPTO granted patents. Top assignees: Seiko Epson Corporation, Catalysts & Chemicals Industries Co., Ltd., Mitsubishi Rayon Company, Limited. Active years: 1993-2011.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katsuyoshi Takeshita. Retrieved from https://idiyas.com/inventor/katsuyoshi-takeshita

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

Calculating rank

% Patents Active = 62.5

Average Co-Inventor Count = 4.3

ph-index = 5

Forward Citations = 125(Granted Patents)


Location History:

  • Suwa, JP (1993 - 1998)
  • Naganoken, JP (2000)
  • Nagano, JP (2000 - 2007)
  • Minowamachi, JP (2006 - 2011)

Company Filing History:


Years Active: 1993-2011

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8 patents (USPTO):Explore Patents

Title: Innovations of Katsuyoshi Takeshita

Introduction

Katsuyoshi Takeshita is a notable inventor based in Minowa-machi, Japan. He has made significant contributions to the field of optical technology, particularly in the development of advanced plastic lenses. With a total of 8 patents to his name, Takeshita's work has had a considerable impact on the industry.

Latest Patents

Takeshita's latest patents focus on innovative methods for manufacturing plastic lenses. One of his key inventions is a plastic lens that features a hard coat layer on a base material containing sulfur atoms. This lens also incorporates an organic anti-reflection film and a primer layer, enhancing its optical properties. The hard coat layer is composed of metal oxide particulates, including titanium oxide with a rutile-type crystal structure, combined with an organic silicon compound. Another patent details a similar plastic lens design, emphasizing the use of fine metal oxide particles and organosilicon compounds to improve performance.

Career Highlights

Throughout his career, Katsuyoshi Takeshita has worked with prominent companies such as Seiko Epson Corporation and World Munsell Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking advancements in lens technology.

Collaborations

Takeshita has collaborated with talented individuals in the field, including Yusuke Kutsukake and Jun Kinoshita. These partnerships have fostered innovation and have been instrumental in the development of his patented technologies.

Conclusion

Katsuyoshi Takeshita's contributions to the field of optical technology through his innovative patents and collaborations highlight his importance as an inventor. His work continues to influence the industry and pave the way for future advancements in lens manufacturing.

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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