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For the Inventor, By the Inventor

Sakai, Japan

Yoshihiko Tairaka

This inventor holds 8 USPTO granted patents. Top assignee: Takeda Chemical Industries, Inc.. Active years: 1977-1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshihiko Tairaka. Retrieved from https://idiyas.com/inventor/yoshihiko-tairaka

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

USPTO Granted Patents = 8

% Patents Active = 100.0

Average Co-Inventor Count = 2.1

ph-index = 5

Forward Citations = 62(Granted Patents)


Location History:

  • Sakai, JA (1977)
  • Saki, JP (1994)
  • Sakai, JP (1987 - 1996)

Company Filing History:

goldMedal8 out of 1,858 
 
Takeda Chemical Industries, Inc.
 patents

Years Active: 1977-1996

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8 patents (USPTO):Explore Patents
1. 5519068 - Method of producing open cell rigid polyurethane foam (1996-05-21),
2. 5367050 - Polyether polyol production of a flexible urethane foam and shaped (1994-11-22),
3. 5332764 - Polyether polyol production of a flexible urethane foam and shaped (1994-07-26),
4. 5318997 - Method for production of open cell rigid polyurethane foam (1994-06-07),
5. 5112876 - Polyether polyol and rigid polyurethane foam (1992-05-12),
6. 5091438 - Method of producing rigid urethane foam (1992-02-25),
7. 4649163 - Flame-retardant polyurethane foam and polyol composition therefor (1987-03-10),
8. 4032574 - Production of polyetherpolyols useful in preparing rigid polyurethane (1977-06-28),

Title: Innovations of Yoshihiko Tairaka

Introduction

Yoshihiko Tairaka is a notable inventor based in Sakai, Japan. He has made significant contributions to the field of polyurethane foam production, holding a total of 8 patents. His work focuses on environmentally friendly methods of producing various types of foams, which are essential in numerous applications.

Latest Patents

One of Tairaka's latest patents is a method of producing open cell rigid polyurethane foam. This innovative method involves reacting a specified polyol mixture using water as the primary blowing agent, eliminating the need for volatile chlorofluorocarbons. Another significant patent involves the production of a polyether polyol, which is used to create flexible urethane foams. This process allows for the production of low-density, low-hardness foams while minimizing environmental impact.

Career Highlights

Yoshihiko Tairaka is currently employed at Takeda Chemical Industries, Inc. His work at the company has been instrumental in advancing the production techniques of polyurethane foams. His innovative approaches have not only improved product quality but also contributed to more sustainable manufacturing practices.

Collaborations

Throughout his career, Tairaka has collaborated with esteemed colleagues such as Katsuhisa Kodama and Kazuo Okada. These partnerships have fostered a creative environment that encourages the development of groundbreaking technologies in the field of chemical engineering.

Conclusion

Yoshihiko Tairaka's contributions to the field of polyurethane foam production highlight his commitment to innovation and sustainability. His patents reflect a deep understanding of materials science and a dedication to improving manufacturing processes.

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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