TREA

Kai R. & D Center, Co., Ltd.

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  • Seki, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Razor head
    • Patent number 12,233,565
    • Issue date Feb 25, 2025
    • Kai R & D Center Co., Ltd.
    • Kengo Hashimoto
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Razor head
    • Patent number 12,109,718
    • Issue date Oct 8, 2024
    • Kai R & D Center Co., Ltd.
    • Kengo Hashimoto
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Intimate area thinning razor
    • Patent number 11,945,129
    • Issue date Apr 2, 2024
    • Kai R & D Center Co., Ltd.
    • Keita Nakada
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Razor
    • Patent number 11,897,155
    • Issue date Feb 13, 2024
    • Kai R & D Center Co., Ltd.
    • Hiroshi Yamakose
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Handle bending razor
    • Patent number 11,813,761
    • Issue date Nov 14, 2023
    • Kai R & D Center Co., Ltd.
    • Masashi Usuda
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Package open knife and a package open knives pack
    • Patent number 11,801,611
    • Issue date Oct 31, 2023
    • Kai R & D Center Co., Ltd.
    • Kazuomi Sumi
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Razor blade
    • Patent number D948123
    • Issue date Apr 5, 2022
    • Kai R & D Center Co., Ltd.
    • Tatsuya Tezuka
    • D28 - Cosmetic products and toilet articles
  • Information Patent Grant

    Safety razor and blade unit for safety razor
    • Patent number 11,279,053
    • Issue date Mar 22, 2022
    • Kai R & D Center Co., Ltd.
    • Michael Lessmann
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Pivotal neck razor
    • Patent number 11,247,358
    • Issue date Feb 15, 2022
    • Kai R & D Center Co., Ltd.
    • Kengo Hashimoto
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Mill for granular food
    • Patent number 11,229,324
    • Issue date Jan 25, 2022
    • Kai R & D Center Co., Ltd.
    • Akira Abo
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Kitchen knife
    • Patent number D937049
    • Issue date Nov 30, 2021
    • Kai R & D Center Co., Ltd.
    • Jun Otsuka
    • D07 - Equipment for preparing or serving food or drink not elsewhere specified
  • Information Patent Grant

    Cheese slicer
    • Patent number D934039
    • Issue date Oct 26, 2021
    • Kai R & D Center Co., Ltd.
    • Wong Hung Tai
    • D07 - Equipment for preparing or serving food or drink not elsewhere specified
  • Information Patent Grant

    Peeler
    • Patent number D933437
    • Issue date Oct 19, 2021
    • Kai R & D Center Co., Ltd.
    • Wong Hung Tai
    • D07 - Equipment for preparing or serving food or drink not elsewhere specified
  • Information Patent Grant

    Edged tool storage device
    • Patent number 11,109,701
    • Issue date Sep 7, 2021
    • Kai R & D Center Co., Ltd.
    • Hung Tai Wong
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Kitchen knife
    • Patent number D926534
    • Issue date Aug 3, 2021
    • Kai R & D Center Co., Ltd.
    • Jun Otsuka
    • D07 - Equipment for preparing or serving food or drink not elsewhere specified
  • Information Patent Grant

    Edged tool storage device set
    • Patent number 10,980,366
    • Issue date Apr 20, 2021
    • Kai R & D Center Co., Ltd.
    • Hung Tai Wong
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Razor with detachable replacement blade
    • Patent number 10,335,970
    • Issue date Jul 2, 2019
    • Kai R & D Center Co., Ltd.
    • Kengo Hashimoto
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Trocar and method for producing same
    • Patent number 10,285,728
    • Issue date May 14, 2019
    • Kai R&D Center Co., Ltd.
    • Kazuyuki Hasebe
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Razor having attached shaving aid
    • Patent number 10,252,432
    • Issue date Apr 9, 2019
    • Kai R & D Center Co., Ltd.
    • Hiroyuki Nakasuka
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Razor
    • Patent number 10,183,408
    • Issue date Jan 22, 2019
    • Kai R & D Center Co., Ltd.
    • Tatsuya Furuta
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Medical knife
    • Patent number 10,179,005
    • Issue date Jan 15, 2019
    • Kai R & D Center Co., Ltd.
    • Masahiro Endo
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Scissors
    • Patent number 10,160,124
    • Issue date Dec 25, 2018
    • KAI R&D CENTER CO., LTD.
    • Hung Tai Wong
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Safety razor
    • Patent number D827202
    • Issue date Aug 28, 2018
    • Kai R & D Center Co., Ltd.
    • Jun Otsuka
    • D28 - Cosmetic products and toilet articles
  • Information Patent Grant

    Razor
    • Patent number 9,919,440
    • Issue date Mar 20, 2018
    • Kai R & D Center Co., Ltd.
    • Daisuke Haba
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Edged tool, method of manufacturing the same, and plasma device for...
    • Patent number 9,902,013
    • Issue date Feb 27, 2018
    • SHINMAYWA INDUSTRIES, LTD.
    • Kensuke Uemura
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Razor with attached shaving aid
    • Patent number 9,889,570
    • Issue date Feb 13, 2018
    • Kai R & D Center Co., Ltd.
    • Daisuke Haba
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Medical knife
    • Patent number 9,808,279
    • Issue date Nov 7, 2017
    • Kai R & D Center Co., Ltd.
    • Makoto Mori
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Razor
    • Patent number 9,796,101
    • Issue date Oct 24, 2017
    • Kai R & D Center Co., Ltd.
    • Daisuke Haba
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Suction cup device
    • Patent number 9,732,785
    • Issue date Aug 15, 2017
    • Kai R & D Center Co., Ltd.
    • Fumio Kobayashi
    • A45 - HAND OR TRAVELLING ARTICLES
  • Information Patent Grant

    Pivoting razor
    • Patent number 9,498,892
    • Issue date Nov 22, 2016
    • Kai R & D Center Co., Ltd.
    • Hiroyuki Nakasuka
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING

Patents Applicationslast 30 patents

  • Information Patent Application

    KITCHEN KNIFE AND METHOD OF MANUFACTURING KITCHEN KNIFE
    • Publication number 20250073935
    • Publication date Mar 6, 2025
    • KAI R&D CENTER CO., LTD
    • Tommie R. Lucas
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    KNIFE
    • Publication number 20240424697
    • Publication date Dec 26, 2024
    • KAI R&D CENTER CO., LTD
    • Junji MISHINA
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    COUPLING-TYPE RAZOR HEAD, RAZOR HEAD, AND RAZOR
    • Publication number 20240416541
    • Publication date Dec 19, 2024
    • KAI R&D CENTER CO., LTD
    • Keita NAKADA
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    KITCHEN KNIFE AND METHOD FOR MANUFACTURING KITCHEN KNIFE
    • Publication number 20240173878
    • Publication date May 30, 2024
    • KAI R&D CENTER CO., LTD.
    • Hironobu TSUKIMOTO
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    INTIMATE AREA THINNING RAZOR
    • Publication number 20240051166
    • Publication date Feb 15, 2024
    • KAI R&D CENTER CO., LTD
    • Keita NAKADA
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    OVAL RING HAIRBRUSH HAVING EXCELLENT DRAINAGE
    • Publication number 20240016287
    • Publication date Jan 18, 2024
    • KAI R&D CENTER CO., LTD
    • Beni IKEUCHI
    • A46 - BRUSHWARE
  • Information Patent Application

    LACRIMAL SAC INCISION KNIFE
    • Publication number 20230329747
    • Publication date Oct 19, 2023
    • KAI R&D CENTER CO., LTD.
    • Naoki OZAWA
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    HANDLE BENDING RAZOR
    • Publication number 20230249370
    • Publication date Aug 10, 2023
    • KAI R&D CENTER CO., LTD.
    • Masashi USUDA
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    MANAGEMENT SERVER
    • Publication number 20230214729
    • Publication date Jul 6, 2023
    • KAI R&D CENTER CO., LTD
    • Akitsugu YAMADA
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    RAZOR
    • Publication number 20220339809
    • Publication date Oct 27, 2022
    • KAI R&D CENTER CO., LTD.
    • Shogo OCHIAI
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    RAZOR HEAD
    • Publication number 20220314475
    • Publication date Oct 6, 2022
    • KAI R&D CENTER CO., LTD.
    • KENGO HASHIMOTO
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    RAZOR
    • Publication number 20220297324
    • Publication date Sep 22, 2022
    • KAI R&D CENTER CO., LTD.
    • Hiroshi YAMAKOSE
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    RAZOR HEAD
    • Publication number 20220258365
    • Publication date Aug 18, 2022
    • KAI R&D CENTER CO., LTD.
    • KENGO HASHIMOTO
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    A PACKAGE OPEN KNIFE AND A PACKAGE OPEN KNIVES PACK
    • Publication number 20220234230
    • Publication date Jul 28, 2022
    • KAI R&D CENTER CO., LTD.
    • Kazuomi SUMI
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Application

    EDGED TOOL STORAGE DEVICE
    • Publication number 20210274955
    • Publication date Sep 9, 2021
    • KAI R&D CENTER CO., LTD.
    • Hung Tai Wong
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    MILL FOR GRANULAR FOOD
    • Publication number 20210219781
    • Publication date Jul 22, 2021
    • KAI R&D CENTER CO., LTD.
    • Akira Abo
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    OSCILLATING RAZOR
    • Publication number 20200164536
    • Publication date May 28, 2020
    • KAI R&D CENTER CO., LTD.
    • KENGO HASHIMOTO
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    RAZOR HAVING ATTACHED SHAVING AID
    • Publication number 20170203452
    • Publication date Jul 20, 2017
    • KAI R&D CENTER CO., LTD.
    • Hiroyuki Nakasuka
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    MEDICAL KNIFE
    • Publication number 20170135716
    • Publication date May 18, 2017
    • KAI R&D CENTER CO., LTD
    • Masahiro Endo
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    SUCTION CUP DEVICE
    • Publication number 20170023051
    • Publication date Jan 26, 2017
    • KAI R&D CENTER CO., LTD.
    • Fumio KOBAYASHI
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    RAZOR
    • Publication number 20170001323
    • Publication date Jan 5, 2017
    • KAI R&D CENTER CO., LTD.
    • Tatsuya FURUTA
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    TROCAR AND METHOD FOR PRODUCING SAME
    • Publication number 20160317176
    • Publication date Nov 3, 2016
    • KAI R&D CENTER CO., LTD.
    • Kazuyuki HASEBE
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    RAZOR WITH DETACHABLE REPLACEMENT BLADE
    • Publication number 20160250764
    • Publication date Sep 1, 2016
    • KAI R&D CENTER CO., LTD.
    • KENGO HASHIMOTO
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    SCISSORS
    • Publication number 20160221199
    • Publication date Aug 4, 2016
    • KAI R&D CENTER CO., LTD
    • Hung Tai WONG
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    RAZOR WITH ATTACHED SHAVING AID
    • Publication number 20150290820
    • Publication date Oct 15, 2015
    • KAI R&D CENTER CO., LTD
    • Daisuke Haba
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    RAZOR
    • Publication number 20150273708
    • Publication date Oct 1, 2015
    • KAI R&D CENTER CO., LTD.
    • Daisuke Haba
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    LUBRICATING RESIN COMPOSITION
    • Publication number 20150272852
    • Publication date Oct 1, 2015
    • KAI R&D CENTER CO., LTD.
    • Hitoshi Ozawa
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    EDGED TOOL, METHOD OF MANUFACTURING THE SAME, AND PLASMA DEVICE FOR...
    • Publication number 20150096423
    • Publication date Apr 9, 2015
    • ShinMaywa Industries, Ltd.
    • Kensuke Uemura
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    PIVOTING RAZOR
    • Publication number 20140096402
    • Publication date Apr 10, 2014
    • KAI R&D CENTER CO., LTD.
    • Hiroyuki Nakasuka
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    MEDICAL KNIFE
    • Publication number 20140031847
    • Publication date Jan 30, 2014
    • KAI R&D CENTER CO., LTD.
    • Makoto Mori
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...