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For the Inventor, By the Inventor

Osaka, Japan

Masahiro Otsuka

This inventor holds 7 USPTO granted patents. Top assignee: Orient Chemical Industries, Ltd.. Active years: 1986-1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masahiro Otsuka. Retrieved from https://idiyas.com/inventor/masahiro-otsuka-hgrxsavd

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

Calculating rank
USPTO Granted Patents = 7

% Patents Active = 100.0

Average Co-Inventor Count = 1.2

ph-index = 4

Forward Citations = 87(Granted Patents)


Company Filing History:

goldMedal7 out of 129 
 
Orient Chemical Industries, Ltd.
 patents

Years Active: 1986-1996

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7 patents (USPTO):Explore Patents
1. 5523027 - Long-wavelength UV light absorber (1996-06-04),
2. 5428137 - Monoazo liquid dye and solutions thereof (1995-06-27),
3. 5401438 - Indole compound and use of the same (1995-03-28),
4. 5296519 - Indole compound and use of the same (1994-03-22),
5. 5254420 - Magenta toner for developing electrostatic images, colored resin, (1993-10-19),
6. 4927538 - Purification of C.I. solvent black 3 (1990-05-22),
7. 4624709 - Nigrosine dyes and process for preparing same (1986-11-25),

Title: Innovations of Masahiro Otsuka

Introduction

Masahiro Otsuka is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of chemical engineering, particularly in the development of innovative compounds and materials. With a total of seven patents to his name, Otsuka's work has had a considerable impact on various industries.

Latest Patents

One of Otsuka's latest patents is a long-wavelength UV light absorber. This invention provides a UV light absorber comprising an azomethine compound, which is designed to enhance the effectiveness of UV protection. The formula includes specific groups that allow for versatility in application. Another notable patent is for a monoazo liquid dye and its solutions. This compound is characterized by its excellent compatibility and solubility in organic liquids, making it suitable for coloring molten plastics and thermal transfer inks. The formulation allows for quick and uniform diffusion in various coloring subjects, including petroleum products.

Career Highlights

Otsuka is currently associated with Orient Chemical Industries, Ltd., where he continues to innovate and develop new chemical solutions. His work has been instrumental in advancing the capabilities of chemical products used in various applications.

Collaborations

Otsuka has collaborated with notable coworkers such as Hisashi Senshu and Toru Tsuruhara. Their combined expertise has contributed to the successful development of innovative chemical products.

Conclusion

Masahiro Otsuka's contributions to the field of chemical engineering through his patents and collaborations highlight his role as a significant inventor. His work continues to influence various industries, showcasing the importance of innovation in chemical applications.

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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