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For the Inventor, By the Inventor

Neyagawa, Japan

Yasuhiro Yamasaki

This inventor holds 20 USPTO granted patents and 3 EPO patents. Top assignee: Orient Chemical Industries, Ltd.. Active years: 1998-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasuhiro Yamasaki. Retrieved from https://idiyas.com/inventor/yasuhiro-yamasaki

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

USPTO Granted Patents = 20

% Patents Active = 55.0

 

Average Co-Inventor Count = 2.0

ph-index = 4

Forward Citations = 62(Granted Patents)


Company Filing History:

goldMedal20 out of 128 
 
Orient Chemical Industries, Ltd.
 patents

Years Active: 1998-2012

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20 patents (USPTO):Explore Patents
1. 8168780 - Method for producing a specific polymorph of titanylphthalocyanine (2012-05-01),
2. 8105431 - Subphthalocyanine derivative having phosphorus derivative as axially substituted group, method for manufacturing the same and optical film using the same (2012-01-31),
3. 8053570 - Method for producing α-form titanylphthalocyanine and electrophotographic photoreceptor comprising α-form titanylphthalocyanine (2011-11-08),
4. 7618555 - Ink composition containing red luminous material (2009-11-17),
5. 7598010 - Triarylamine dimer derivative having amorphous phase (2009-10-06),
6. 7462711 - U-oxo crosslinked dissimilar metal phthalocyanine compound and process for selectively producing the same (2008-12-09),
7. 7163772 - Organic electrophotographic photo-receptor (2007-01-16),
8. 7087747 - μ-Oxo bridged heterometal compound and selective production method thereof (2006-08-08),
9. 6846350 - Red luminous ink composition (2005-01-25),
10. 6811940 - Mixed substance of triphenylamine dimers (2004-11-02),
11. 6743283 - Blue luminous ink composition (2004-06-01),
12. 6242648 - Process for preparing triarylamine dimer (2001-06-05),
13. 6150518 - Process for preparing .chi.-form metal free phthalocyanine (2000-11-21),
14. 6106985 - Layered-form electrophotographic photoreceptor (2000-08-22),
15. 6093514 - (.mu.)-oxo-aluminum/gallium phthalocyanine dimer (2000-07-25),

Title: Yasuhiro Yamasaki: Innovator in Polymorphic Materials

Introduction

Yasuhiro Yamasaki, based in Neyagawa, Japan, is a prominent inventor with a notable portfolio of 20 patents. His work primarily focuses on advancing materials science, specifically in the field of polymorphs and optical materials, contributing significantly to research and development in these areas.

Latest Patents

Yamasaki's latest inventions showcase his expertise and innovative thinking. One of his notable patents is a method for producing a specific polymorph of titanylphthalocyanine. This invention offers a method for producing a polymorphic form of titanylphthalocyanine that exhibits enhanced photoreceptor characteristics, including improved chargeability and photosensitivity compared to conventional versions.

Another significant patent by Yamasaki details a subphthalocyanine derivative featuring a phosphorus derivative as an axially substituted group. This novel derivative not only boasts excellent solubility but also preserves the exceptional properties inherent to original subphthalocyanines. Furthermore, this invention outlines a manufacturing method and describes an optical film that effectively utilizes this innovative derivative.

Career Highlights

Yamasaki's contributions to Orient Chemical Industries, Ltd., a leading company in the field of chemical manufacturing, have been instrumental in driving innovative solutions. His extensive research has led to the development of materials that meet the growing demands of modern technology.

Collaborations

Throughout his career, Yamasaki has collaborated with esteemed colleagues, including Kenji Takaki and Kazuyoshi Kuroda. Their combined efforts have fostered an environment conducive to innovation, leading to breakthroughs that have enhanced the capabilities of optical and photoreceptive materials.

Conclusion

Yasuhiro Yamasaki continues to be a driving force in the development of advanced materials, with his recent patents reflecting a commitment to excellence in the field. His innovative work at Orient Chemical Industries, Ltd. positions him as a key contributor to the future of materials science, paving the way for new applications in various technological domains.

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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