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For the Inventor, By the Inventor

Sodegaura, Japan

Yoshio Hironaka

This inventor holds 10 USPTO granted patents and 2 EPO patents. Top assignee: Idemitsu Kosan Company, Limited. Active years: 1985-2016.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshio Hironaka. Retrieved from https://idiyas.com/inventor/yoshio-hironaka

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

USPTO Granted Patents = 10

% Patents Active = 50.0


Average Co-Inventor Count = 3.0

ph-index = 4

Forward Citations = 45(Granted Patents)


Location History:

  • Chiba, JP (2007)
  • Sodegaura, JP (1985 - 2014)
  • Kudamatsu, JP (2016)

Company Filing History:

goldMedal10 out of 2,283 
 
Idemitsu Kosan Company, Limited
 patents

Years Active: 1985-2016

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10 patents (USPTO):Explore Patents
1. 9273264 - Ester compound, lubricant base oil, lubricant, grease base oil, and grease (2016-03-01),
2. 8754019 - Pressure transmission medium and hydraulic device (2014-06-17),
3. 8741450 - Material for organic electroluminescence devices and organic electroluminescence device using the material (2014-06-03),
4. 8580391 - Material for organic electroluminescence devices and organic electroluminescence device using the material (2013-11-12),
5. 7534749 - Lube base oil and lubricating oil composition (2009-05-19),
6. 7235509 - Processes for the recovery and recycling of boron trifluoride or complexes thereof (2007-06-26),
7. 5466392 - Organic electroluminescence device and compound having an aluminum (1995-11-14),
8. 5336546 - Organic electroluminescence device (1994-08-09),
9. 4959487 - Process for producing aromatic nitrile (1990-09-25),
10. 4551555 - Process for the production of carbonyl compounds (1985-11-05),

Title: Innovations of Yoshio Hironaka

Introduction

Yoshio Hironaka is a prominent inventor based in Sodegaura, Japan. He has made significant contributions to the field of chemical engineering, particularly in the development of ester compounds and lubricant technologies. With a total of 10 patents to his name, Hironaka's work has had a substantial impact on various industrial applications.

Latest Patents

Hironaka's latest patents include innovative products such as ester compounds, lubricant base oils, lubricants, grease base oils, and greases. One of his notable inventions is an ester compound represented by a specific formula, where various alkyl groups and hydrogen atoms play crucial roles in its structure. Additionally, he has developed a pressure transmission medium that utilizes an ester or ether with multiple ring structures, enhancing the efficiency and precision of hydraulic devices.

Career Highlights

Hironaka is currently associated with Idemitsu Kosan Company, Limited, where he continues to push the boundaries of innovation in lubricant technology. His expertise in creating high-performance materials has positioned him as a key figure in the industry.

Collaborations

Throughout his career, Hironaka has collaborated with esteemed colleagues such as Chishio Hosokawa and Toshiyuki Tsubouchi. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and advancements in their respective fields.

Conclusion

Yoshio Hironaka's contributions to the field of chemical engineering and lubricant technology are noteworthy. His innovative patents and collaborations reflect his commitment to advancing industrial applications. Hironaka's work continues to influence the industry, showcasing the importance of innovation in driving progress.

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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