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For the Inventor, By the Inventor

Yokohama, Japan

Wataru Mitani

This inventor holds 4 USPTO granted patents. Top assignee: Kabushiki Kaisha Toshiba. Active years: 1987-1988.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Wataru Mitani. Retrieved from https://idiyas.com/inventor/wataru-mitani

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

Calculating rank
USPTO Granted Patents = 4

% Patents Active = 100.0

Average Co-Inventor Count = 2.5

ph-index = 3

Forward Citations = 36(Granted Patents)


Company Filing History:

goldMedal4 out of 53,286 
 
Kabushiki Kaisha Toshiba
 patents

Years Active: 1987-1988

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4 patents (USPTO):Explore Patents
1. 4762761 - Electrophotographic photosensitive member and the method of (1988-08-09),
2. 4717637 - Electrophotographic photosensitive member using microcrystalline silicon (1988-01-05),
3. 4713308 - Electrophotographic photosensitive member using microcrystalline silicon (1987-12-15),
4. 4678731 - Electrophotographic photosensitive member having barrier layer (1987-07-07),

Title: Wataru Mitani: Innovator in Electrophotographic Technology

Introduction

Wataru Mitani is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of electrophotographic technology, holding a total of 4 patents. His work focuses on enhancing the performance and efficiency of photosensitive members used in electrophotographic applications.

Latest Patents

Mitani's latest patents include innovative designs for electrophotographic photosensitive members. One of his notable inventions involves a barrier layer interposed between a photoconductive layer and a conductive substrate. This barrier layer is formed of a first BN layer of high resistivity laminated with a second microcrystalline silicon layer, which elevates the charging capacity and reduces residual potential. Additionally, he has developed a photoconductive layer made from amorphous silicon that exhibits high sensitivity to a broad range of wavelengths. Another patent focuses on a photosensitive member where the barrier layer is formed of microcrystalline silicon containing elements from group III or V of the periodic table, enhancing dark resistance and chargeability.

Career Highlights

Wataru Mitani is associated with Kabushiki Kaisha Toshiba, where he continues to innovate in the field of electrophotographic technology. His work has been instrumental in advancing the capabilities of photosensitive members, making them more efficient and effective for various applications.

Collaborations

Mitani has collaborated with notable colleagues such as Shuji Yoshizawa and Mariko Yamamoto. Their combined expertise has contributed to the development of cutting-edge technologies in the electrophotographic sector.

Conclusion

Wataru Mitani's contributions to electrophotographic technology through his patents and collaborations highlight his role as a key innovator in this field. His work continues to influence advancements in photosensitive member technology, showcasing the importance of innovation in enhancing performance and efficiency.

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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