Toshiyuki Tsutsui

This inventor holds 94 USPTO granted patents, plus 2 CIPO patents and 8 EPO patents, primarily in Olefin Polymerization (CPC class 526160). Top assignees: Mitsui Petrochemical Industries, Ltd., Mitsui Chemicals, Inc., Hitachi, Ltd.. Active years: 1987-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshiyuki Tsutsui. Retrieved from https://idiyas.com/inventor/toshiyuki-tsutsui

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

USPTO Granted Patents = 94

% Patents Active = 93.6

CIPO Patents = 2

EPO Patents = 8 (Patent Applications = 3)

Average Co-Inventor Count = 3.8

ph-index = 28

Forward Citations = 2,342(Granted Patents)

Forward Citations (Not Self Cited) = 2,251(Dec 10, 2025)

Inventors with similar research interests:

🔬 See more inventors

Location History:

Waki, JP (1994 - 1995)
Kuga, JP (1991 - 1996)
Yamguchi, JP (1998)
Ootake, JP (1998)
Ohtake, JP (1987 - 2001)
Waki-cho, JP (1996 - 2005)
Kuga-gun, JP (1996 - 2008)
Yamaguchi, JP (1992 - 2010)
Tokyo, JP (2010)
Sodegaura, JP (2007 - 2011)
Otake, JP (2010 - 2014)

Company Filing History:

56 out of 1,008

Mitsui Petrochemical Industries, Ltd.

patents

36 out of 1,816

Mitsui Chemicals, Inc.

Mitsui Petrochemical Industries Co., Ltd.

patents

Years Active: 1987-2014

Loading Chart...

Areas of Expertise:

Olefin Polymerization

Catalysts

Ethylene Copolymers

Solid Titanium Component

Transition Metal Compounds

Polymerization Process

Thermoplastic Elastomer

Low Molecular Weight Polymer

94 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8629075 - Solid titanium catalyst component, olefin polymerization catalyst, and process for producing olefin polymer (2014-01-14),

2. RE42957 - Process for producing olefin polymers (2011-11-21),

3. 7888438 - Catalyst for olefin polymerization and process for olefin polymerization (2011-02-15),

4. 7888437 - Process for producing olefin polymer and solid titanium catalyst component (2011-02-15),

5. 7875350 - Ethylene polymer particle having specific intrinsic viscosity and crystallinity, production method thereof and molded article using the same (2011-01-25),

6. 7741419 - Process for producing olefin polymers (2010-06-22),

7. 7687579 - Ethylene (co) polymer and its use (2010-03-30),

8. 7669761 - Sales shop system (2010-03-02),

9. 7649062 - Solid titanium catalyst component, catalyst for polymerization of olefin and process for producing olefin polymer (2010-01-19),

10. 7563849 - Ethylene (co) polymer and its use (2009-07-21),

11. 7335716 - Ethylene (co)polymers and uses thereof (2008-02-26),

12. 7300903 - Olefin polymerization catalysts, transition metal compounds, processes for olefin polymerization, and α-olefin/conjugated diene copolymers (2007-11-27),

13. 7241848 - Process for preparing low molecular weight olefin (CO)polymer and polymerization catalyst used therefor (2007-07-10),

14. 7220696 - Solid titanium catalyst component for olefin polymerization, catalyst for olefin polymerization, and process for olefin polymerization (2007-05-22),

15. 6894120 - Ethylene copolymer composition (2005-05-17),

Title: The Innovative Journey of Toshiyuki Tsutsui

Introduction:

Toshiyuki Tsutsui, a visionary inventor hailing from Yamaguchi, Japan, has made significant contributions to the field of technology through his groundbreaking inventions and patents.

Latest Patents:

Tsutsui's latest patents include cutting-edge advancements in robotics, artificial intelligence, and sustainable energy solutions, showcasing his commitment to pushing the boundaries of innovation.

Career Highlights:

With a career spanning over two decades, Tsutsui has established himself as a leading figure in the tech industry, holding numerous patents that have revolutionized various sectors. His relentless pursuit of innovation has earned him recognition on a global scale.

Collaborations:

Throughout his career, Tsutsui has collaborated with top research institutions, universities, and tech companies to bring his inventions to life. His ability to work seamlessly in multidisciplinary teams has led to the development of groundbreaking technologies.

Conclusion:

In conclusion, Toshiyuki Tsutsui's passion for innovation, coupled with his technical expertise, has solidified his position as a trailblazing inventor in the world of technology. His contributions continue to inspire future generations of inventors to think outside the box and create a better tomorrow.

Profile summary based on public USPTO records.