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US 11,833,721 B2Granted
Resin molding, printer, and method for manufacturing resin molding
AssigneeCanon Kabushiki Kaisha
InventorsKosuke Saito, Yukiya Enokida, Kei Oikawa
Life of this patent
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Abstract
A resin molding has a first surface and a second surface, wherein the second surface includes a rib, and wherein the first surface includes a glossy portion and a non-glossy portion.
Claims13
A resin molding comprising:
- a first surface;
- and
- a second surface,
- wherein the first surface includes a glossy portion and a non-glossy portion, and the second surface includes a rib,
- wherein the first surface has a repetitive pattern of a glossy surface and a non-glossy surface raised from the glossy surface,
- wherein the glossy surface includes a high-glossy region having high glossiness and a low-glossy region having glossiness lower than the glossiness of the region having the high glossiness and higher than glossiness of the nonglossy surface, and the low-glossy region is formed on a back side of the rib,
- wherein the non-glossy surface has a kurtosis value equal to or greater than 3.5, and
- wherein a radius of curvature of a connecting portion to connect the non-glossy surface and the glossy surface is equal to or less than 20 μm.
5 more elements
A printer comprising:
- a document platen cover,
- wherein the document platen cover includes a first surface and a second surface,
- wherein the second surface includes a rib,
- wherein the first surface has a repetitive pattern of a glossy surface and a non-glossy surface raised from the glossy surface,
- wherein the glossy surface includes a high-glossy region having high glossiness and a low-glossy region having glossiness lower than the glossiness of the region having the high glossiness and higher than glossiness of the nonglossy surface, and the low-glossy region is formed on a back side of the rib,
- where the non-glossy surface has a kurtosis value equal to or greater than 3.5, and
- wherein a radius of curvature of a connecting portion to connect the non-glossy surface and the glossy surface is equal to or less than 20 μm.
4 more elements
A manufacturing method of injecting rein into a cavity of a metal mold and manufacturing a resin molding including a first surface and a second surface,
- wherein the second surface includes a rib,
- wherein the first surface has a repetitive pattern of a glossy surface and a non-glossy surface raised from the glossy surface,
- wherein the glossy surface includes a high-glossy region having high glossiness and a low-glossy region having glossiness lower than the glossiness of the region having the high glossiness and higher than glossiness of the nonglossy surface, and the low-glossy region is formed on a back side of the rib,
- where the non-glossy surface has a kurtosis value equal to or greater than 3.5, and
- wherein a radius of curvature of a connecting portion to connect the non-glossy surface and the glossy surface is equal to or less than 20 μm.
2 more elements
Dependencies are inferred from the claim text.