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For the Inventor, By the Inventor

Sodegaura, Japan

Yoshiyuki Totani

This inventor holds 18 USPTO granted patents and 4 published patent applications and 5 EPO patents. Top assignees: Mitsui Chemicals, Inc., Mitsui Toatsu Chemicals, Incorporated, Yamamoto Chemicals, Inc.. Active years: 1993-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshiyuki Totani. Retrieved from https://idiyas.com/inventor/yoshiyuki-totani

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

USPTO Granted Patents = 18 

% Patents Active = 94.4

 

Average Co-Inventor Count = 4.3

ph-index = 6

Forward Citations = 92(Granted Patents)


Location History:

  • Kanagawa, JP (1993)
  • Yokohama, JP (1994 - 2001)
  • Chiba, JP (2005 - 2007)
  • Sodegaura, JP (2012 - 2022)
  • Ichihara, JP (2015 - 2023)

Company Filing History:

goldMedal12 out of 1,816 
 
Mitsui Chemicals, Inc.
 patents
silverMedal5 out of 1,379 
 
Mitsui Toatsu Chemicals, Incorporated
 patents
bronzeMedal2 out of 73 
 
Yamamoto Chemicals, Inc.
 patents
4. 1 out of 23 
 
National Institutes of Biomedical Innovation, Health and Nutrition
 patents
5. 1 out of 6 
 
Savid Therapeutics Inc.
 patents
where one patent can have more than one assignee

Years Active: 1993-2026

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18 patents (USPTO):Explore Patents
1. 12534544 - Solid titanium catalyst component, olefin polymerization catalyst, olefin polymerization method, and propylene polymer (2026-01-27),
2. 12486239 - Benzotriazole compound, light absorber, and resin composition (2025-12-02),
3. 12240945 - Compound, resin, polycarbonate resin, and optical molded article (2025-03-04),
4. 11746187 - Compound, resin, polycarbonate resin, and optical molded article (2023-09-05),
5. 11630241 - Polycarbonate resin lens and polycarbonate resin composition (2023-04-18),
6. 11442066 - Method for identifying drug-discovery target protein for development of antibody drug, and method for producing antibody against target protein (2022-09-13),
7. 9139522 - Aromatic amine derivative and organic electroluminescent device using the same (2015-09-22),
8. 8980442 - Aromatic amine derivative and organic electroluminescent element using same (2015-03-17),
9. 8294144 - Organic transistor (2012-10-23),
10. 7166240 - Hydrocarbon compounds, materials for organic electroluminescent elements and organic electroluminescent elements (2007-01-23),
11. 6929870 - Hydrocarbon compounds, materials for organic electroluminescent elements and organic electroluminescent elements (2005-08-16),
12. 6217793 - Acetylene compound, liquid crystal composition and liquid crystal element (2001-04-17),
13. 5861108 - Naphthalene compound, and liquid crystal composition and liquid crystal (1999-01-19),
14. 5770108 - Pyrimidine compound and liquid crystal composition and liquid crystal (1998-06-23),
15. 5426170 - Method for preparing an aromatic polycarbonate (1995-06-20),

Title: An Insight into the Innovative Mind of Yoshiyuki Totani

Introduction: Yoshiyuki Totani, an inventive powerhouse residing in Sodegaura, Japan, has made significant contributions to the field of materials science and engineering. With a remarkable portfolio of 16 patents, Totani has carved a niche for himself through his innovative ideas and unwavering commitment to advancing technology.

Latest Patents: Among his latest patented inventions are several significant advancements, including compounds, resins, polycarbonate resins, and optical molded articles. Specifically, he has provided a compound represented by General Formula (1), which showcases his expertise in developing cutting-edge materials that enhance optical properties and usability.

Career Highlights: Totani's professional journey has been marked by collaborations with leading companies such as Mitsui Chemicals, Inc. and Mitsui Toatsu Chemicals, Incorporated. His role in these organizations has enabled him to focus on research and development, placing him at the forefront of innovation in the chemical industry.

Collaborations: Throughout his career, Totani has worked alongside notable colleagues, including Masakatsu Nakatsuka and Tsutomu Ishida. These collaborations have successfully fostered an environment of creativity and shared knowledge, resulting in impactful innovations that address real-world challenges.

Conclusion: In summary, Yoshiyuki Totani stands as a testament to the power of innovation and collaboration in the technological landscape. With his 16 patents and invaluable contributions to materials science, he continues to push boundaries, inspiring future generations of inventors and researchers in the quest for advanced solutions.

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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