Hino, Japan

Keiko Hioka

This inventor holds 1 USPTO granted patent. Top assignee: Konishiroku Photo Industry Co., Ltd.. Active years: 1983.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiko Hioka. Retrieved from https://idiyas.com/inventor/keiko-hioka

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 = 3.0

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 1983

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1 patent (USPTO):Explore Patents

Title: Keiko Hioka: Innovator in Photomask Technology

Introduction

Keiko Hioka is a prominent inventor based in Hino, Japan. She has made significant contributions to the field of photomask technology, particularly with her innovative designs that enhance the functionality and efficiency of photomasks used in semiconductor manufacturing.

Latest Patents

Hioka holds a patent for a "Photomask blank provided with a transparent electro-conductive layer." This invention features a photomask blank that includes a base with a transparent electroconductive material coated on it. Additionally, it has a heavy metal oxide layer laminated on the electroconductive material, either in direct contact or through an intermediary light-screening layer made of the same heavy metal.

Career Highlights

Keiko Hioka is associated with Konishiroku Photo Industry Co., Ltd., a company known for its advancements in imaging and photomask technologies. Her work has been instrumental in developing materials that improve the performance of photomasks, which are critical in the production of integrated circuits.

Collaborations

Throughout her career, Hioka has collaborated with notable colleagues, including Takashi Hatano and Akira Maruyama. These partnerships have fostered innovation and have contributed to the success of various projects within the company.

Conclusion

Keiko Hioka's contributions to photomask technology exemplify her dedication to innovation in the field. Her patent and collaborative efforts highlight her role as a leading inventor in the industry.

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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