Japan Styrene Paper Corporation

Patent Applications and Registrations

Patent applications and USPTO patent grants for Japan Styrene Paper Corporation.The latest application filed is for "method of production of expansion-molded article, from foamable thermoplastic resin particles and apparatus therefor".

Company Profile

0.25.0

Japan Styrene Paper Corporation - Tokyo JP
Japan Styrene Paper Corp. - Tokyo JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Method of production of expansion-molded article, from foamable thermoplastic resin particles and apparatus therefor Grant 4,822,542 - Kuwabara , et al. April 18, 1	1989-04-18
Process for producing a foamed base material for car ceiling member Grant 4,810,316 - Wakabayashi , et al. March 7, 1	1989-03-07
Core material for an automobile bumper Grant RE32,780 - Yoshimura , et al. November 8, 1	1988-11-08
Production method of expansion-molded article of polypropylene resin Grant 4,777,000 - Kuwabara , et al. October 11, 1	1988-10-11
Core material for automobile bumpers Grant 4,756,948 - Kuramochi , et al. July 12, 1	1988-07-12
Heat treatment apparatus for polyolefin resin particles Grant 4,716,021 - Akiyama , et al. December 29, 1	1987-12-29
Casting method Grant 4,711,287 - Kuwabara , et al. December 8, 1	1987-12-08
Multi-conductor cable Grant 4,707,569 - Yoshimura , et al. November 17, 1	1987-11-17
Process for the production of expanded particles of a polymeric material Grant 4,704,239 - Yoshimura , et al. November 3, 1	1987-11-03
Process for the production of expanded particles of a polypropylene resin Grant 4,676,939 - Kuwabara June 30, 1	1987-06-30
Process for producing polyethylene extruded foams Grant 4,649,001 - Nakamura , et al. March 10, 1	1987-03-10
Propylene-base random copolymer particles and production process thereof Grant 4,602,082 - Akiyama , et al. July 22, 1	1986-07-22
Core material for an automobile bumper Grant 4,600,636 - Yoshimura , et al. July 15, 1	1986-07-15
Bumper core and process producing same Grant 4,598,001 - Watanabe , et al. July 1, 1	1986-07-01
Preliminarily foamed particles of non-crosslinked polypropylene-type resin Grant 4,587,270 - Kuwabara , et al. May 6, 1	1986-05-06
Pre-foamed particles of polypropylene-base resin Grant 4,568,608 - Kuwabara , et al. February 4, 1	1986-02-04
Core material for automobile bumpers Grant 4,504,534 - Adachi , et al. March 12, 1	1985-03-12
Electrical conductive foam beads and molded electrical conductive foamed articles obtained therefrom Grant 4,496,627 - Azuma , et al. January 29, 1	1985-01-29
Process for producing prefoamed polymer particles Grant 4,464,484 - Yoshimura , et al. August 7, 1	1984-08-07
Method of pressurizing treatment of pre-foamed particles of polyolefin resin Grant 4,443,393 - Akiyama , et al. April 17, 1	1984-04-17
Process for producing foamed and molded article of polypropylene resin Grant 4,440,703 - Akiyama , et al. April 3, 1	1984-04-03
Process for producing pre-foamed particles of polyolefin resin Grant 4,436,840 - Akiyama , et al. March 13, 1	1984-03-13
Process for producing foamed polyolefin articles from aged pre-foamed particles of polyolefin resins Grant 4,399,087 - Akiyama , et al. August 16, 1	1983-08-16
Pre-foamed particles of polypropylene resin and process for production thereof Grant 4,379,859 - Hirosawa , et al. April 12, 1	1983-04-12
Process for producing olefinic resin foams Grant 4,255,371 - Shimoyashiki , et al. March 10, 1	1981-03-10

uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.

While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.

All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.