Kazuyuki Hanada

This inventor holds 40 USPTO granted patents, plus 4 CIPO patents and 4 EPO patents, primarily in Polyurethane Resins. Top assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Ukima Colour & Chemicals Mfg. Co., Ltd., Ukima Chemicals & Color Mfg. Co., Ltd.. Active years: 1989-2018.

USPTO Granted Patents = 40

% Patents Active = 95.0

CIPO Patents = 4

EPO Patents = 4 (Patent Applications = 4)

Average Co-Inventor Count = 3.4

ph-index = 9

Forward Citations = 198(Granted Patents)

Location History:

Washinomiyo, JP (1990)
Saitama, JP (1990)
Washinomiya, JP (1989 - 1994)
Nihonbashi, JP (1995 - 1997)
Chuo-ku, JP (2003)
Washimiya-machi, JP (2010)
Tokyo, JP (1993 - 2018)

Company Filing History:

35 out of 265

Dainichiseika Color & Chemicals Mfg. Co., Ltd.

patents

20 out of 28

Ukima Colour & Chemicals Mfg. Co., Ltd.

patents

12 out of 12

Ukima Chemicals & Color Mfg. Co., Ltd.

patents

4. 2 out of 5,989

Shin-Etsu Chemical Co., Ltd.

6. 5 out of 834,453

Other

patents

where one patent can have more than one assignee

Years Active: 1989-2018

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Areas of Expertise:

Polyurethane Resins

Gas Barrier Films

Radioactive Cesium Removal

Self-Crosslinkable Resins

Polysiloxane

Artificial Leather

Heat-Sensitive Materials

Coating Compositions

Thermoplastic Copolymers

Microparticles

Ink-Jet Recording Sheets

Weatherstrip Materials

40 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10066048 - Self-crosslinkable polyhydroxy polyurethane resin, resinaceous material that contains the resin, process for production of the resin, and imitation leather, surfacing material and weatherstrip material, using the resin (2018-09-04),

2. 10008300 - Method for eliminating radioactive iodine and hydrophilic resin for eliminating radioactive iodine (2018-06-26),

3. 10000609 - Self-crosslinking polysiloxane-modified polyhydroxy polyurethane resin, resin material containing same, method for producing same, artificial leather comprising same, and thermoplastic polyolefin skin material comprising same (2018-06-19),

4. 9540537 - Coating composition for forming gas barrier layer, gas barrier film, and method for producing gas barrier film (2017-01-10),

5. 9536630 - Method for removing radioactive cesium, hydrophilic resin composition for removal of radioactive cesium, method for removing radioactive iodine and radioactive cesium, and hydrophilic resin composition for removal of radioactive iodine and radioactive cesium (2017-01-03),

6. 9416227 - Polyhydroxyurethane microparticles, and process for producing same (2016-08-16),

7. 9412479 - Method and composition for removing radioactive cesium (2016-08-09),

8. 9394462 - Polysiloxane-modified polyhydroxy polyurethane resin, method for producing same, heat-sensitive recording material using the resin, imitation leather, thermoplastic polyolefin resin skin material, material for weather strip, and weather strip (2016-07-19),

9. 9359719 - Self-crosslinkable polysiloxane-modified polyhydroxy polyurethane resin, process for producing said resin, resin material comprising said resin, and artificial leather produced utilizing said resin (2016-06-07),

10. 8975420 - Five-membered cyclocarbonate polysiloxane compound and process for preparation of same (2015-03-10),

11. 8962907 - Method for removing radioactive cesium, hydrophilic resin composition for removing radioactive cesium, method for removing radioactive iodine and radioactive cesium, and hydrophilic resin composition for removing radioactive iodine and radioactive cesium (2015-02-24),

12. 8951933 - Polysiloxane-modified polyhydroxy polyurethane resin, method for producing same, heat-sensitive recording material using the resin, imitation leather, thermoplastic polyolefin resin skin material, material for weather strip, and weather strip (2015-02-10),

13. 8703648 - Polysiloxane-modified polyhydroxy polyurethane resin, method for producing same, heat-sensitive recording material using the resin, imitation leather, thermoplastic polyolefin resin skin material, material for weather strip, and weather strip (2014-04-22),

14. 7790191 - Cosmetic composition (2010-09-07),

15. 7288301 - Thermal recording media (2007-10-30),

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