Company Filing History:

13 out of 555

Idemitsu Petrochemical Co., Ltd.

patents

4 out of 2,269

Idemitsu Kosan Company, Limited

patents

Years Active: 1990-2020

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17 patents (USPTO):Sort by Forward CitationsExplore 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.

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1 patent (EPO):

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Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.