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For the Inventor, By the Inventor

Echizen, Japan

Shigeru Sakai

This inventor holds 13 USPTO granted patents and 1 EPO patent. Top assignee: Shin-Etsu Chemical Co., Ltd.. Active years: 1994-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeru Sakai. Retrieved from https://idiyas.com/inventor/shigeru-sakai

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

USPTO Granted Patents = 13

% Patents Active = 92.3


Average Co-Inventor Count = 2.3

ph-index = 5

Forward Citations = 84(Granted Patents)


Location History:

  • Fukui, JP (1994 - 1996)
  • Takefu, JP (1999)
  • Fukui-ken, JP (1996 - 2004)
  • Echizen, JP (2014)

Company Filing History:

goldMedal13 out of 5,989 
 
Shin-Etsu Chemical Co., Ltd.
 patents

Years Active: 1994-2014

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13 patents (USPTO):Explore Patents
1. 8629208 - Water-soluble fluid for use in machining of rare earth magnet (2014-01-14),
2. 6673143 - Aqueous slurry of rare earth hydroxide particles (2004-01-06),
3. 6387339 - Rare earth oxide particles and method for preparation thereof (2002-05-14),
4. 5914287 - Hydroxide-coated rare earth oxide particles (1999-06-22),
5. 5911921 - Non-stoichiometric ytterbium phosphate powder of low infrared (1999-06-15),
6. 5879647 - Method for the preparation of fine globular particles of yttrium oxide (1999-03-09),
7. 5644037 - Method for the preparation of polyhedral particles of a rare earth (1997-07-01),
8. 5567403 - Particles of rare earth phosphate and method for the preparation thereof (1996-10-22),
9. 5545386 - Method for the preparation of globular particles of a rare earth oxide (1996-08-13),
10. 5503815 - Method for the preparation of a lanthanum manganite powder (1996-04-02),
11. 5439656 - Method for the preparation of a rare earth oxide powder (1995-08-08),
12. 5415851 - Method for the preparation of spherical particles of a rare earth (1995-05-16),
13. 5352426 - Method for the preparation of coprecipitated carbonate of lanthanum, (1994-10-04),

Title: Shigeru Sakai: Innovator in Rare Earth Technologies

Introduction

Shigeru Sakai is a prominent inventor based in Echizen, Japan. He has made significant contributions to the field of materials science, particularly in the machining of rare earth magnets. With a total of 13 patents to his name, Sakai's work has had a substantial impact on various industrial applications.

Latest Patents

Sakai's latest patents include innovative solutions for machining rare earth materials. One notable patent is for a water-soluble fluid designed for use in the machining of rare earth magnets. This fluid incorporates a polymeric flocculant added to an aqueous solution containing an organic acid and a basic compound. Another significant patent involves an aqueous slurry of rare earth hydroxide particles, which serves as a sintering aid for ceramic powders like silicon nitride. This slurry is characterized by its small average particle diameter, low electric conductivity, and exceptional stability against settling.

Career Highlights

Sakai is currently employed at Shin-Etsu Chemical Co., Ltd., where he continues to develop innovative materials and processes. His work has been instrumental in advancing the capabilities of rare earth materials in various applications.

Collaborations

Sakai has collaborated with notable colleagues, including Yuji Kimura and Masami Kaneyoshi. These partnerships have fostered a collaborative environment that enhances the innovation process.

Conclusion

Shigeru Sakai's contributions to the field of rare earth technologies exemplify the importance of innovation in materials science. His patents and ongoing work at Shin-Etsu Chemical Co., Ltd. continue to influence the industry positively.

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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