Resin product, electronic device, and method of making resin product

Patent metadata

Field	Value
Publication number	US-11040471-B2
Application number	US-201916440119-A
Country	US
Kind code	B2
Filing date	Jun 13, 2019
Priority date	Jun 22, 2018
Publication date	Jun 22, 2021
Grant date	Jun 22, 2021

Abstract

A resin product includes an outer surface. The outer surface includes a first area and a second area. The first area includes a surface pattern including a concave and convex portion having a first difference in height. The second area includes a surface pattern including a concave and convex portion having a second difference in height, larger than the first difference in height. An arithmetic average height of a top of a convex portion of the concave and convex portion having the first difference in height is larger than an arithmetic average height of a top of a convex portion of the concave and convex portion having the second difference in height.

First claim

What is claimed is:

1. A resin product comprising a base portion,
wherein the base portion comprises:
a first portion, an outer surface of which is defined as a first area; and
a second portion, an outer surface of which is defined as a second area,

wherein a material of the first portion of the base portion is the same resin material as a material of the second portion of the base portion,
wherein the first area comprises a surface pattern comprising a concave and convex portion having a first difference in height,
wherein the second area comprises a surface pattern comprising a concave and convex portion having a second difference in height, larger than the first difference in height, and
wherein an arithmetic average height of a top of a convex portion of the concave and convex portion having the first difference in height is larger than an arithmetic average height of a top of a convex portion of the concave and convex portion having the second difference in height.

2. The resin product according to claim 1 , wherein the first difference in height is smaller than 15 μm.

3. The resin product according to claim 1 , wherein the second difference in height is 15 μm to less than 500 μm.

4. The resin product according to claim 1 , wherein a difference between a 60° specular glossiness of the first area and a 60° specular glossiness of the second area is 10 or less.

5. The resin product according to claim 1 , wherein the base portion further comprises a transition area formed between the first area and the second area,
wherein the transition area comprises a surface pattern comprising a concave and convex portion having a difference in height, and
wherein the difference in height of the concave and convex portion of the transition area has a value between the first difference in height and the second difference in height.

6. The resin product according to claim 1 , wherein the surface pattern of the first area and/or the second area is a grain pattern.

7. The resin product according to claim 1 , wherein the surface pattern of the first area and/or the second area is a hairline pattern in which a linear convex portion and a linear concave portion are alternately formed.

8. The resin product according to claim 7 , wherein a difference in height of the concave and convex portion of the second area decreases as the second area becomes closer to the first area in a direction orthogonal to a line of the linear convex portion.

9. The resin product according to claim 1 , wherein the base portion further comprises a third area adjacent to the first area,
wherein the third area comprises a surface pattern comprising a concave and convex portion having a difference in height, equal to the first difference in height, and
wherein the third area is coated with at least one of characters, numerals, and a figure.

10. An electronic device comprising the resin product according to claim 1 , and an electronic component.

11. A resin product comprising an outer surface comprising a first area and a second area,
wherein the first area comprises a surface pattern comprising a concave and convex portion having a first difference in height,
wherein the second area comprises a surface pattern comprising a concave and convex portion having a second difference in height, larger than the first difference in height,
wherein an arithmetic average height of a top of a convex portion of the concave and convex portion having the first difference in height is larger than an arithmetic average height of a top of a convex portion of the concave and convex portion having the second difference in height,
wherein the outer surface further comprises a third area adjacent to the first area,
wherein the third area comprises a surface pattern comprising a concave and convex portion having a difference in height, equal to the first difference in height, and
wherein the third area is coated with at least one of characters, numerals, and a figure.

Assignees

• Canon Kk

Inventors

• Sano Toshiyuki
• Oikawa Kei

Classifications

• B29L2031/3481

  Housings or casings incorporating or embedding electric or electronic elements · CPC title

• B29K2995/0022

  Bright, glossy or shiny surface · CPC title

• B29K2055/02

  ABS polymers, i.e. acrylonitrile-butadiene-styrene polymers · CPC title

• B29C45/372 Primary

  provided with means for marking or patterning, e.g. numbering articles · CPC title

• B29K2025/06

  PS, i.e. polystyrene · CPC title