Back to results
US 12,535,476 B2Granted
Resin molded component, image forming apparatus, and determination method
AssigneeRicoh Company, Ltd.
InventorKeiichi Shimizu
Life of this patent
Estimating the term…
Abstract
A resin molded component includes a discoloration checker made of a first material discolored at a first speed; and a resin molded portion including the discoloration checker, the resin molded portion made of a second material discolored at a second speed faster than the first speed at which the first material of the discoloration checker discolors.
Claims20
A resin molded component comprising:
- a discoloration checker made of a first material discolored at a first speed;
- and
- a resin molded portion including the discoloration checker, the resin molded portion made of a second material discolored at a second speed faster than the first speed at which the first material of the discoloration checker discolors.
A resin molded component for determining a degree of material deterioration, the component comprising:
- a discoloration checker made of a first material that discolors at a first rate when exposed to an environmental factor;
- and
- a resin molded portion made of a second material that discolors at a second rate, different from the first rate, when exposed to the environmental factor,
- wherein the discoloration checker and the resin molded portion are positioned relative to each other to allow for a visual comparison between a color of the discoloration checker and a color of the resin molded portion to determine the degree of material deterioration of the resin molded portion.
1 more element
Dependencies are inferred from the claim text.