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Patent

Introducing patents

Representative example1

【MOLDED ARTICLE OF COMPOSITE RESIN CONTAINING FIBERS 
Appl. No.: 16/814,648
Filed: Mar. 10, 2020
Applicant: Panasonic Holdings Corporation, Osaka (JP) 
Inventors: Toshifumi Nagino, Osaka (JP); Masashi Hamabe, Osaka (JP) 
Patent No.: US 11,660,791 B2
Date of Patent: May 30, 2023

In a method producing a molded article of a composite resin containing base resin and fibers, the composite resin containing a fibrous filler in the base resin and the fibrous filler including natural fibers with a fibrillated part on each end of the fibrous filler in a fiber length direction, the base resin and the fibrous filler are charged into a melt-kneading device. The base resin is melted and the molten base resin and the fibrous filler are kneaded in the melt-kneading device, thereby fibrillating only the ends of the fibrous filler. The obtained composite resin is discharged from the melt-kneading device and formed into a pellet shape, with the molded article of the composite resin produced by molding the pellets. 

patent01

Representative example2

MOLEDE ARTICLE AND MOLDING METHOD THEREOF
Appl. No.: 15/842,337
Filed: Dec. 14, 2017
Applicant: Panasonic Holdings Corporation, Osaka (JP) 
Inventors: Yuki Mita, Nara (JP); Shouma Nishino, Osaka(JP); Hideo Mine, Nara(JP); Masashi Hamabe, Osaka (JP); Toshifumi Nagino, Osaka (JP); 
Patent No.: US 10,596,737 B2
Date of Patent: Mar. 24, 2020

A molded article  1 is made of a resin material  3 containing cellulose fibers  2. The molded article  1 has a surface portion  4 that is in a range satisfying T F≦0.1×T where T is the thickness of the molded article  1 and T F is a distance from the surface of the molded article  1, and the molded article  1 satisfies D F≧1.1×D where D is an average cellulose concentration of the overall molded article  1 and D F is an average cellulose concentration of the surface portion  4. Thus, the molded article suppresses an increase in bending modulus while considerably improving a tensile modulus.

patent02

Representative example3


COMPOSITE RESIN MOLDED ARTICLE
Appl. No.: 16/184,071
Filed: Nov. 8, 2018
Applicant: Panasonic Holdings Corporation, Osaka (JP) 
Inventors: Masashi Hamabe, Osaka (JP); Toshifumi Nagino, Osaka (JP); Takao Kuromiya, Osaka(JP); Masayoshi Imanishi, Osaka(JP); Shouma Nishino, Osaka(JP); 
Patent No.: US 10,584,248 B2
Date of Patent: Mar. 10, 2020

A composite resin molded article including: a base resin; and a fibrous filler, wherein the fibrous filler is bent between one end side thereof and another end side thereof, and wherein the angle of the bending is 90 degrees or larger.

patent03

Patent List

No. Patent Number Title of Invention Date of Patent Remarks
1 11660791 MOLDED ARTICLE OF
COMPOSITE RESIN
CONTAINING FIBERS
(2023.05.30) Registered
JP/CN
2 10596737 MOLEDE ARTICLE AND
MOLDING METHOD THEREOF
(2020.03.24)  Registered
JP/CN/DE
3 10584248 COMPOSITE RESIN
MOLDED ARTICLE
(2020.03.10) Registered
JP
4 10654201 COMPOSITE RESIN
MOLDED BODY,
MANUFACTURING
METHOD THEREOF, AND
CASING MEMBER USING
SAME
(2020.05.19)  Registered
JP/CN/DE
5 10822482 COMPOSITE RESIN
COMPOSITION
(2022.11.03) Registered
JP/CN/DE
6 11168202 FIBER COMPOUND RESIN
COMPOSITON AND
METHOD OF
MANUFACTURING THE
SAME
(2021.11.09) Registered
JP/CN/DE
7 11541583 INJECTION-MOLDED
ARTICLE AND METHOD
FOR MANUFACTURING
SAME
(2023.01.03)  
8 11725092 Foam molded article (2023.08.15)  Registered
JP