Tamaki Ishii

This inventor holds 34 USPTO granted patents, primarily in Polyolefin Compositions. Top assignee: Sumitomo Chemical Company, Limited. Active years: 1981-1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tamaki Ishii. Retrieved from https://idiyas.com/inventor/tamaki-ishii

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

USPTO Granted Patents = 34

% Patents Active = 100.0

Average Co-Inventor Count = 4.2

ph-index = 10

Forward Citations = 322(Granted Patents)

Location History:

Osaka, JP (1993)
Suita, JP (1981 - 1994)

Company Filing History:

34 out of 6,960

Sumitomo Chemical Company, Limited

patents

Years Active: 1981-1994

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Areas of Expertise:

Polyolefin Composition

Stabilizer

Piperidine Derivative

Synthetic Resins

Polyurethane

Rubber Composition

Phenolic Compounds

Hydroxyphenylpropionic Acid

Bisphenol Derivatives

Stabilized Polymer

Acetylene Carbamide

Isocyanuric Acid Ester

34 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5356964 - Stabilized polyolefin composition (1994-10-18),

2. 5250593 - Stabilized polyolefin composition (1993-10-05),

3. 5246777 - Fiber or film formed from a stabilized polyolefin composition (1993-09-21),

4. 5214084 - Stabilized polypropylene resin composition (1993-05-25),

5. 5106913 - Rubber composition (1992-04-21),

6. 5049604 - Process for producing piperidine derivative and stabilized resin (1991-09-17),

7. 4963605 - Stabilized polyolefin composition (1990-10-16),

8. 4845244 - Production of hydroxyphenylpropionic acid ester having a novel (1989-07-04),

9. 4839408 - Stabilized polyolefin composition (1989-06-13),

10. 4829112 - Polyolefin resin composition (1989-05-09),

11. 4812494 - Stabilized styrene polymer (1989-03-14),

12. 4769479 - Hydroxyphenylpropionic acid ester with novel crystalline structure and (1988-09-06),

13. 4754045 - Method for producing hydroxyphenylpropionic acid ester (1988-06-28),

14. 4739080 - Purification of hydroxyphenylpropionic acid ester (1988-04-19),

15. 4725634 - Stabilizer for synthetic resins (1988-02-16),

Title: Tamaki Ishii - Innovator in Polyolefin Technology

Introduction

Tamaki Ishii, based in Suita, Japan, is a prominent inventor known for his innovative contributions to the field of polyolefin technology. With a remarkable portfolio of 34 patents, Ishii has established himself as a leading figure in the development of stabilized polyolefin compositions.

Latest Patents

Tamaki Ishii's most recent patents focus on advanced polyolefin compositions. His latest work includes a patented method for producing a stabilized polyolefin composition, which is essential for enhancing the performance and durability of polyolefin materials in various applications. This innovation is pivotal in improving the quality and lifespan of products made from these materials.

Career Highlights

Ishii has made significant strides in his career, primarily through his role at Sumitomo Chemical Company, Limited. His contributions to the company's innovative projects have been instrumental in advancing their technology portfolio in sustainable and high-performance materials.

Collaborations

Throughout his career, Tamaki Ishii has collaborated with esteemed colleagues such as Shinichi Yachigo and Haruki Okamura. Together, they have contributed to groundbreaking research that has led to the successful development of several key patents in the field of polyolefins.

Conclusion

In conclusion, Tamaki Ishii's influence in the realm of polyolefin technology is significant, underscored by his impressive number of patents and collaborative efforts. His work continues to drive innovation within Sumitomo Chemical Company, Limited, making lasting impacts on the industry and paving the way for future advancements.

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]