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For the Inventor, By the Inventor

Itami, Japan

Yoshikazu Takehira

This inventor holds 14 USPTO granted patents. Top assignees: Daiso Co., Ltd., Sharp Kabushiki Kaisha Corporation. Active years: 1990-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshikazu Takehira. Retrieved from https://idiyas.com/inventor/yoshikazu-takehira

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

USPTO Granted Patents = 14

% Patents Active = 100.0

Average Co-Inventor Count = 3.1

ph-index = 4

Forward Citations = 42(Granted Patents)


Location History:

  • Hyogo, JP (1992 - 1993)
  • Itami, JP (1990 - 1994)
  • Osaka, JP (2001)

Company Filing History:

goldMedal14 out of 118 
 
Daiso Co., Ltd.
 patents
silverMedal3 out of 25,974 
 
Sharp Kabushiki Kaisha Corporation
 patents
where one patent can have more than one assignee

Years Active: 1990-2001

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14 patents (USPTO):Explore Patents
1. 6268515 - Process for producing 3-hydroxy-&ggr;-butyrolactone derivatives (2001-07-31),
2. 5374373 - Ferroelectric liquid crystal device (1994-12-20),
3. 5324450 - Liquid crystalline compounds and process for production thereof (1994-06-28),
4. 5308540 - Liquid crystalline compounds and process for production thereof (1994-05-03),
5. 5250715 - Optically active 2-methylenepentane derivative and process for preparing (1993-10-05),
6. 5223646 - Process for producing optically active atenolol and intermediate thereof (1993-06-29),
7. 5216187 - Optically active 2-methylenepentane derivative and process for preparing (1993-06-01),
8. 5215678 - Ferroelectric liquid crystal composition and liquid crystal device (1993-06-01),
9. 5200538 - Optically active 2-methylenecyclopentanone derivative and process for (1993-04-06),
10. 5180844 - Optically active 2-methylenecyclopentanone derivative and process for (1993-01-19),
11. 5136066 - Process for preparing optically active cyclopentenone derivative (1992-08-04),
12. 5130482 - Process for producing optically active atenolol and intermediate thereof (1992-07-14),
13. 5026506 - Chiral smectic liquid crystal composition (1991-06-25),
14. 4909957 - Liquid crystalline compounds and process for production thereof (1990-03-20),

Title: Innovations and Contributions of Yoshikazu Takehira

Introduction

Yoshikazu Takehira is a prominent inventor based in Itami, Japan. He has made significant contributions to the field of technology, particularly in the development of innovative materials and devices. With a total of 14 patents to his name, Takehira has established himself as a key figure in his area of expertise.

Latest Patents

Among his latest patents is a process for producing 3-hydroxy-γ-butyrolactone derivatives. This process involves preparing a derivative represented by a specific formula, showcasing his focus on chemical innovations. Another notable patent is for a ferroelectric liquid crystal device. This device features a pair of substrates equipped with voltage application means, an orientation control layer, and a layer of ferroelectric liquid crystal composition. The composition includes compounds that exhibit various liquid crystal phases, demonstrating Takehira's expertise in advanced materials.

Career Highlights

Throughout his career, Yoshikazu Takehira has worked with several notable companies, including Daiso Co., Ltd. and Sharp Kabushiki Kaisha Corporation. His experience in these organizations has allowed him to refine his skills and contribute to various technological advancements.

Collaborations

Takehira has collaborated with esteemed colleagues such as Kazuhiko Sakaguchi and Naoya Kasai. These partnerships have further enriched his work and led to innovative solutions in the field.

Conclusion

Yoshikazu Takehira's contributions to technology through his patents and collaborations highlight his role as a significant inventor. His work continues to influence advancements in materials and devices, showcasing the importance of innovation in today's world.

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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