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For the Inventor, By the Inventor

Ichihara, Japan

Noriyuki Kunishi

This inventor holds 17 USPTO granted patents and 2 published patent applications and 1 EPO patent. Top assignees: Idemitsu Petrochemical Co., Ltd., Idemitsu Kosan Company, Limited. Active years: 1990-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Noriyuki Kunishi. Retrieved from https://idiyas.com/inventor/noriyuki-kunishi

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

USPTO Granted Patents = 17 

% Patents Active = 88.2


Average Co-Inventor Count = 2.8

ph-index = 5

Forward Citations = 78(Granted Patents)


Location History:

  • Ichiharashi, JP (1999)
  • Chiba, JP (2009)
  • Ichihara, JP (1990 - 2020)

Company Filing History:

goldMedal13 out of 555 
 
Idemitsu Petrochemical Co., Ltd.
 patents
silverMedal4 out of 2,283 
 
Idemitsu Kosan Company, Limited
 patents

Years Active: 1990-2020

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17 patents (USPTO):Explore Patents
1. 10640306 - Polycarbonate resin powder and method for transporting same (2020-05-05),
2. 10030101 - Branched polycarbonate production method (2018-07-24),
3. 7517944 - Process for producing polycarbonate (2009-04-14),
4. 6605221 - Method and apparatus for washing polycarbonate/organic solvent solution (2003-08-12),
5. 5990262 - Process for producing polycarbonates (1999-11-23),
6. 5981051 - Method for producing granular polycarbonate prepolymer for solid-state (1999-11-09),
7. 5922826 - Process for producing polycarbonate (1999-07-13),
8. 5726223 - Process for production of polymer particles (1998-03-10),
9. 5583166 - Process for production of polymer particles (1996-12-10),
10. 5504187 - Polymer granules containing little residual solvent (1996-04-02),
11. 5475084 - Process for the production of polycarbonate powder (1995-12-12),
12. 5470937 - Anisotropically oriented phase difference compensation film of a (1995-11-28),
13. 5349043 - Polycarbonate and process for producing the same (1994-09-20),
14. 5322919 - Process for producing a polycarbonate in inert solvent (1994-06-21),
15. 5306802 - Polycarbonate copolymer and method for production thereof (1994-04-26),

Title: Noriyuki Kunishi: Innovator in Polycarbonate Technology

Introduction

Noriyuki Kunishi is a prominent inventor based in Ichihara, Japan. He has made significant contributions to the field of polycarbonate technology, holding a total of 17 patents. His innovative work has advanced the production and application of polycarbonate materials.

Latest Patents

Among his latest patents is a method for producing a polycarbonate resin powder. This powder includes a polycarbonate-polyorganosiloxane copolymer, with a specific particle size distribution. Another notable patent is a branched polycarbonate production method. This method involves a series of steps that utilize an alkali aqueous solution and a polymerization catalyst to create a branched polycarbonate with defined characteristics.

Career Highlights

Throughout his career, Kunishi has worked with notable companies such as Idemitsu Petrochemical Co., Ltd. and Idemitsu Kosan Company, Limited. His experience in these organizations has allowed him to refine his expertise in polymer chemistry and innovation.

Collaborations

Kunishi has collaborated with several professionals in his field, including Shigeki Kuze and Masaya Okamoto. These partnerships have contributed to the development of his patented technologies and have fostered a collaborative environment for innovation.

Conclusion

Noriyuki Kunishi's contributions to polycarbonate technology exemplify his dedication to innovation and excellence in the field. His patents and career achievements highlight his role as a leading inventor in the industry.

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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