Kitchen knife and method for manufacturing kitchen knife
AssigneeKai R&D Center Co., Ltd.
InventorsHironobu Tsukimoto, Junji Mishina, Toshiya Nakamura, Koichi Momose
Life of this patent
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Abstract
A kitchen knife includes a spine-side member located on a spine side; and a blade-side member located on a blade side and composed of a stacked member including a stack of two or more different metallic materials. The blade-side member is thinner than the spine-side member, and a pattern is formed on the blade-side member by processing the blade-side member into a curved shape at least at a part thereof as viewed from a cutting edge side, then joining the blade-side member to the spine-side member, and performing at least one of grinding and polishing after the joining.
Claims4
A method of manufacturing a kitchen knife comprising:
- a curving process step of processing a blade-side member composed of a stacked member including a stack of two or more different metallic materials in such a manner as to curve the blade-side member into an undulating shape as viewed from a cutting edge side;
- a joining process step of joining the blade-side member and a spine-side member to each other;
- and
- at least one of a grinding step and a polishing step of performing at least one of grinding and polishing on the joined blade-side member and spine-side member, so that the different metallic materials are exposed on at least one of a front surface and a back surface of the blade-side member to form a pattern,
- wherein the blade-side member before the curving process step has a smaller thickness viewed from the cutting edge side than the spine-side member, and
- wherein the thickness of the blade-side member viewed from the cutting edge side after the curving process step and before the at least one of a grinding step and a polishing step is equal to that of the spine-side member.
Dependencies are inferred from the claim text.