Patents Assigned to Kai R&D Center Co., Ltd.
  • Patent number: 11945129
    Abstract: An intimate area thinning razor, in which a comb portion includes comb teeth, a blade edge exposed portion where a blade edge is exposed, and a cover portion where the blade edge is covered. The comb teeth are provided at both ends in the width direction of the cover portion and between both of the ends, and a set of the blade edge exposed portion and the cover portion arranged in a predetermined manner is disposed repeatedly. A ratio of a total of lengths between center portions in the width direction of the comb teeth adjacent to the plurality of blade edge exposed portions, relative to a length between center portions in the width direction of the comb teeth at outermost positions in the width direction of the comb portion, is 1/10 to 4/10. Groove portions are formed on an extended line of a gap between the comb teeth.
    Type: Grant
    Filed: October 25, 2023
    Date of Patent: April 2, 2024
    Assignee: KAI R&D CENTER CO., LTD.
    Inventor: Keita Nakada
  • Patent number: 11897155
    Abstract: A razor assembled by folding includes a holding part that is held by a user, a head supporting part that is formed integrally with the holding part, and a razor head that is provided on the head supporting part. The entire of the holding part and the head supporting part is formed of paper. The entire of the razor head is formed of metal, and the razor head includes a blade body and a frame body housing the blade body.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: February 13, 2024
    Assignee: KAI R&D CENTER CO., LTD.
    Inventors: Hiroshi Yamakose, Mai Kadokura, Shunsuke Shioya, Toshiki Takagi
  • Patent number: 11813761
    Abstract: A handle bending razor includes a grip portion, a razor head, and a head coupling portion. The razor head has a blade body, a blade assembly body, a connecting portion, and an elastic support body. The handle bending razor includes a switching mechanism which can change an angle formed by a contact surface and an up-down direction and, when an external force is not applied, switches between a first state in which a neutral angle formed by the contact surface and the up-down direction is a first angle, and the contact surface and the up-down direction become substantially parallel and a second state in which the neutral angle is a second angle larger than the first angle. In the second state, when the external force is applied, the blade assembly body is tiltable to a position where the contact surface and the up-down direction become substantially perpendicular.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: November 14, 2023
    Assignee: KAI R&D CENTER CO., LTD.
    Inventor: Masashi Usuda
  • Patent number: 11801611
    Abstract: A package opening knife has a body part, a blade part, a gripping part that extends in an elongated shape in a prescribed first direction, and a guide part provided with a guide surface that slides in a surface direction of the package in a state of contacting the package to guide movement of the blade part. When a surface direction of the guide is defined as a second direction, the first direction and the second direction become substantially parallel to each other.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: October 31, 2023
    Assignee: KAI R&D CENTER CO., LTD.
    Inventors: Kazuomi Sumi, Shogo Ochiai, Kazunobu Hara
  • Publication number: 20230214729
    Abstract: A management server enables a user to make a dish on a selected date and time and a selected space designated by a company. A user information management unit manages user information including confirmation information and profile information; a company information management unit manages company information including information regarding a space; a recipe determination unit determines a recipe of the dish on the basis of the user information and the company information; an ordering unit orders at least one of an ingredient and a seasoning for making the dish on the basis of the recipe; and a content management unit manages content related to the recipe to be provided to the user. The confirmation information of the user indicates the selected space and the selected date and time, and the information regarding the designated space includes constraint information regarding use of the space.
    Type: Application
    Filed: September 29, 2022
    Publication date: July 6, 2023
    Applicant: KAI R & D CENTER CO., LTD.
    Inventor: Akitsugu YAMADA
  • Publication number: 20220314475
    Abstract: A razor head includes a frame including two opposing long side walls and two opposing short side walls, connectors each connecting two points of the frame in an interior of the frame, and elongated blades arranged on an inner side of the frame. The blades are coupled to only two of the connectors, the two connectors to which the blades are coupled connecting the two long side walls to each other. In a case where a position in the frame in a longitudinal direction is represented by a percentage, when a middle of the frame in the longitudinal direction is 0% and two ends of the frame in the longitudinal direction that correspond to inner surfaces of the two short side walls are 100%, the two connectors to which the blades are coupled are each arranged in a range from 30% to 90% between the middle and the two ends.
    Type: Application
    Filed: September 10, 2019
    Publication date: October 6, 2022
    Applicant: KAI R&D CENTER CO., LTD.
    Inventor: Kengo Hashimoto
  • Publication number: 20220258365
    Abstract: A razor head includes a frame, elongated blades arranged on an inner side of the frame, and two bridge walls each extending between two points of the frame in an interior of the frame, the bridge walls each including projections arranged in an arrangement direction of the blades. Each of the blades is held between adjacent ones of the projections of the bridge walls. Each of the projections includes a first flat surface and a second flat surface. In each of the bridge walls, the first flat surface and the second flat surface are shifted from each other in a longitudinal direction of the blades so as not to overlap each other, and the first flat surfaces and the second flat surfaces are located on the same position as viewed in the arrangement direction. Each of the projections has a horizontal cross-sectional shape of a parallelogram.
    Type: Application
    Filed: September 10, 2019
    Publication date: August 18, 2022
    Applicant: KAI R&D CENTER CO., LTD.
    Inventor: Kengo Hashimoto
  • Patent number: 11279053
    Abstract: Disclosed is a blade unit for a safety razor comprising a connecting structure for fixing the blade unit to a handle, a blade housing comprising a plurality of blades having cutting edges lying in a shaving plane, and a rear portion next to the plurality of blades, comprising a non-flexible back portion extending parallel to the shaving plane, and a lubricating pad having a flexible portion and a non-flexible portion, the non-flexible portion being arranged on and supported by the non-flexible back portion, the flexible portion extending rearwards from the non-flexible portion beyond the non-flexible back portion to define a rear edge of the rear portion of the blade unit, the flexible portion forming a convex skin-contacting surface when bending away from the shaving plane in use.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: March 22, 2022
    Assignee: KAI R&D CENTER CO., LTD.
    Inventors: Michael Lessmann, Jens Treu, Kesen Zeng, Yvonne Neumann, Hiroyuki Nakasuka
  • Patent number: 11247358
    Abstract: A pivotal neck type razor includes a holder having a top end, and a razor head attached to the holder. The razor head includes a blade assembly, an elastic support body, and a connection unit that is continuous with the top end of the holder. The elastic support body includes a support portion that supports the blade assembly and a flexible portion located between the support portion and the connection unit. The blade assembly is urged by the flexible portion of the elastic support body to be stationary at a neutral position. The blade assembly is movable to at least one movement position from the neutral position against an urging force of the flexible portion.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: February 15, 2022
    Assignee: KAI R&D CENTER CO., LTD.
    Inventor: Kengo Hashimoto
  • Patent number: 11229324
    Abstract: A mill for granular food including an adjuster attached to a barrel unit and rotatable relative to the barrel unit and to be prevented from coming off the barrel unit in an axis direction. A ground particle size for granular food is adjusted by rotating the adjuster. A movement attachment and detachment unit that inscribes an outer mill unit in the barrel unit and the adjuster, and makes the outer mill unit movable in the axis direction and makes the outer mill unit attachable and detachable. A rotary shaft extending from a rotary operation unit extends downward along a mill. An inner mill unit is attached to the rotary shaft. The adjuster is provided with a movement restricting unit that restricts movement of the inner mill unit to a predetermined position. Releasing the restriction makes the inner mill unit and the outer mill unit extractable.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: January 25, 2022
    Assignee: KAI R&D CENTER CO., LTD.
    Inventor: Akira Abo
  • Patent number: 11109701
    Abstract: An edged tool storage device storing a kitchen knife and the like has a structure including a pedestal, a support rod that extends in a substantially vertical direction from the pedestal, and a first edged tool cover and a second edged tool cover that are removably connected to the support rod and store edged tools, in which each of the first edged tool cover and the second edged tool cover includes a holding part that is elastically fitted onto the support rod and thus holds the support rod, and is removably connected to the support rod by the holding part, and the holding part of the first edged tool cover and the holding part of the second edged tool cover are different in height when connected to the support rod.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: September 7, 2021
    Assignee: KAI R&D CENTER CO., LTD.
    Inventors: Hung Tai Wong, Cheuk Wa Pun
  • Patent number: 10980366
    Abstract: The edged tool storage device set is an edged tool storage device set including a first edged tool storage device and a second edged tool storage device, in which the first edged tool storage device includes a first case that has a first hole storing a blade of an edged tool and a flange-shaped first projection that projects from the first case in a direction crossing the extending direction of the first hole, and the second edged tool storage device includes a second case that has a second hole storing a blade of an edged tool and a groove-shaped first recess that faces a direction crossing the extending direction of the second hole and has a shape allowing fitting with the first projection.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: April 20, 2021
    Assignee: KAI R&D CENTER CO., LTD.
    Inventors: Hung Tai Wong, Cheuk Wa Pun
  • Patent number: 10335970
    Abstract: A razor blade cartridge is detachably attached to a holder. A socket portion is provided to the holder. A coupler projection, which detachably attaches to the socket portion through the insertion/ejection opening of the socket portion, is provided to the blade cartridge. A guide portion, which extends towards the opposite side from the skin contacting surface of the blade cartridge and is supported by the socket portion of the holder, is provided to the coupler projection of the blade cartridge. The end of the guide portion is provided with a manipulation portion, which is manipulated at the manipulation opening of the socket portion to release the guide portion from the socket portion and the manipulation of which removes the blade cartridge from the insertion/ejection opening of the socket portion. Thus, the blade cartridge can be easily removed by a gentle application of pressure on the manipulation portion.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: July 2, 2019
    Assignee: KAI R&D CENTER CO., LTD.
    Inventor: Kengo Hashimoto
  • Patent number: 10285728
    Abstract: A trocar has an insertion tube. A tube outlet of the insertion tube communicates with a collar of the insertion tube. An incision blade is provided to the tube outlet. The tube outlet opens toward the incision blade. The incision blade can thereby be inserted into an eyeball to form an incision, and the insertion tube can be inserted in the eyeball through the incision while the incision blade remains in the eyeball. Two lateral blade edges extend from a distal blade edge in the incision blade. The blade edges have outermost blade edges located in an outer region, which is a boundary surface, which includes the inner circumferential surface of the tube outlet. Therefore, the width dimension of the incision blade can be set greater than the inner diameter of the insertion tube.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: May 14, 2019
    Assignee: KAI R&D CENTER CO., LTD.
    Inventor: Kazuyuki Hasebe
  • Patent number: 10252432
    Abstract: In a razor having a blade body assembling portion provided with a blade support supporting a blade body and a shaving aid, the blade support is provided with an outer frame portion, to which the shaving aid is attached. The shaving aid is protruded from the outer frame portion. The shaving aid has a deformable portion, which is provided in a cantilever manner. The deformable portion is deformable along with contact with a skin surface during use. A protruding edge portion provided in the deformable portion is exposed to the outside in a protruding direction of the shaving aid.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: April 9, 2019
    Assignee: KAI R&D CENTER CO., LTD.
    Inventor: Hiroyuki Nakasuka
  • Patent number: D926534
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: August 3, 2021
    Assignee: KAI R&D CENTER CO., LTD.
    Inventors: Jun Otsuka, Tommie Richard Lucas, Jr.
  • Patent number: D933437
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: October 19, 2021
    Assignee: KAI R&D CENTER CO., LTD.
    Inventor: Wong Hung Tai
  • Patent number: D934039
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: October 26, 2021
    Assignee: KAI R&D CENTER CO., LTD.
    Inventors: Wong Hung Tai, Pun Cheuk Wa
  • Patent number: D937049
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: November 30, 2021
    Assignee: KAI R&D CENTER CO., LTD.
    Inventors: Jun Otsuka, Tommie Richard Lucas, Jr.
  • Patent number: D948123
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: April 5, 2022
    Assignee: KAI R&D CENTER CO., LTD.
    Inventor: Tatsuya Tezuka