Sodegaura, Japan

Yoriyuki Takashima

This inventor holds 27 USPTO granted patents and 7 published patent applications and 6 EPO patents, primarily in Organic Electroluminescence. Top assignee: Idemitsu Kosan Company, Limited. Active years: 1998-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoriyuki Takashima. Retrieved from https://idiyas.com/inventor/yoriyuki-takashima

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

USPTO Granted Patents = 27 

% Patents Active = 70.4

 

Average Co-Inventor Count = 4.3

ph-index = 12

Forward Citations = 471(Granted Patents)


Location History:

  • Chiba, JP (2010 - 2015)
  • Sodegaura, JP (1998 - 2017)
  • Ichihara, JP (2022 - 2024)

Company Filing History:


Years Active: 1998-2024

Loading Chart...
Loading Chart...
Areas of Expertise:
Viscosity Index Improver
Lubricating Oil Composition
Dispersing Agent
Organic Electroluminescence Device
Electroluminescent Element Material
Fluoranthene Compound
Phenanthrene Derivative
Aromatic Amine Derivative
Naphthalene Derivative
Aminodibenzofluorene Derivative
Isoxazole Derivatives
Pyrazole Derivatives
27 patents (USPTO):Explore Patents

Title: **Yoriyuki Takashima: Innovator in Lubrication Technologies**

Introduction

Yoriyuki Takashima, based in Sodegaura, Japan, is a prominent inventor with an impressive portfolio of 27 patents focused on advancements in lubrication technologies. His work exemplifies innovation in the design and application of viscosity index improvers and dispersants used in lubricating oils.

Latest Patents

Among his latest contributions to the field are two significant patents. The first is a *viscosity index improver composition and lubricating oil composition*. This invention aims to regulate the high-temperature high-shear (HTHS) viscosity of lubricating oil to lower levels effectively. The composition features a comb-shaped polymer that includes a structural unit derived from a unique macromonomer and a specific monomer, improving the performance of lubricating oils across varying temperatures.

The second patent pertains to a *dispersing agent for lubricating oil, method for producing same, and lubricating oil composition*. This invention involves a dispersant that incorporates a nitrogen-containing compound synthesized from polyolefins, maleic acid compounds, and polyamine. The specification includes detailed conditions that the polyolefin must meet, reflecting the complexity and innovation behind Takashima’s work.

Career Highlights

Yoriyuki Takashima has made significant strides in lubrication technology through his association with Idemitsu Kosan Company, Limited, a leader in petroleum products. His extensive research and development efforts have made a substantial impact on the performance and efficiency of lubricants used in various industries.

Collaborations

Throughout his career, Takashima has collaborated with esteemed colleagues, including Toshihiro Iwakuma and Chishio Hosokawa. These partnerships have facilitated the sharing of knowledge and expertise, fostering further innovations in lubricant technologies.

Conclusion

Yoriyuki Takashima stands out as a key figure in the field of lubrication innovations. His patents demonstrate a forward-thinking approach to enhancing the efficiency and effectiveness of lubricating oils, contributing positively to the automotive and machinery sectors. Through continued collaboration and research, Takashima's work promises to pave the way for future advancements in lubrication technology.

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]
Loading…