Patents by Inventor Kenji Hiroshima

Kenji Hiroshima has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11523585
    Abstract: A dog toilet includes: a receptacle in which a dog urinates; a urination detection sensor that includes a first electrode and a second electrode; and an operating device that operates based on a conducting state of the first electrode and the second electrode of the urination detection sensor. At least one of the first electrode and the second electrode is spaced apart from the receptacle. The dog toilet further includes an insulating member arranged between the receptacle and at least one of the first electrode and the second electrode.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: December 13, 2022
    Assignee: Unicharm Corporation
    Inventors: Kenji Hiroshima, Takayuki Matsuo
  • Publication number: 20200281153
    Abstract: A dog toilet includes: a receptacle in which a dog urinates; a urination detection sensor that includes a first electrode and a second electrode; and an operating device that operates based on a conducting state of the first electrode and the second electrode of the urination detection sensor. At least one of the first electrode and the second electrode is spaced apart from the receptacle. The dog toilet further includes an insulating member arranged between the receptacle and at least one of the first electrode and the second electrode.
    Type: Application
    Filed: May 27, 2020
    Publication date: September 10, 2020
    Applicant: UNICHARM Corporation
    Inventors: Kenji Hiroshima, Takayuki Matsuo
  • Publication number: 20200245586
    Abstract: A dog toilet has a front-rear direction, a left-right direction, and an up-down direction that are perpendicular to one another. The dog toilet includes: a bottom portion; a urination detection sensor that detects whether there is urination by a dog; a wall portion provided to surround the bottom portion; an access opening provided in the wall portion on one side in the front-rear direction with respect to a front-rear-direction center position; and a feeder that supplies food from a feeding port based on a detection result of the urination detection sensor. The feeding port is provided on another side in the front-rear direction with respect to the front-rear-direction center position.
    Type: Application
    Filed: April 20, 2020
    Publication date: August 6, 2020
    Applicant: UNICHARM Corporation
    Inventors: Kenji Hiroshima, Takayuki Matsuo
  • Publication number: 20200107518
    Abstract: The present invention provides an animal excreta disposal sheet which has exceptional properties for diffusion of excretory fluid, and with which an absorbent body can be effectively used. This animal excreta disposal sheet (1) includes a liquid-permeable surface sheet (2) that forms a supply surface for the excreta, an absorbent body (3), and an intermediate sheet (4) positioned between the surface sheet (2) and the absorbent body (3), the intermediate sheet (4) having a liquid permeability greater than 0 and less than that of the surface sheet (2).
    Type: Application
    Filed: February 14, 2018
    Publication date: April 9, 2020
    Inventors: Kenji Hiroshima, Takayuki Matsuo
  • Patent number: 9776352
    Abstract: A method of producing animal litter including bentonite which includes a step of forming, from a starting material for animal litter containing bentonite, a starting mixture that contains 10 to 60 mass % of granules that remain on an 8.0 mm-aperture sieve and 40 to 90 mass % of granules that pass through an 8.0 mm-aperture sieve, a step of conveying the starting mixture on a path of conveyance, a step of loading the starting mixture that has been conveyed on the path of conveyance into a granulator capable of pulverizing and granulation, pulverizing at least the granules remaining on the 8.0 mm-aperture sieve while forming a granulated product, and a step of drying the granulated product.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: October 3, 2017
    Assignee: Unicharm Corporation
    Inventors: Takeshi Ikegami, Kenji Hiroshima
  • Patent number: 9655341
    Abstract: To provide animal toilet sand that can prevent an aggregate from growing depth-wise upon absorption of liquid such as urine, and can suppress scattering. An animal toilet sand composed of a plurality of particulates mainly composed of bentonite, wherein: the particulates include smaller diameter particulates of at least 0.8 mm and no greater than 2 mm in grain size, and larger diameter particulates of at least 2 mm and no greater than 10 mm in grain size; and the particulates include the smaller diameter particulates in a range of at least 20% and no greater than 100% of the larger diameter particulates in ratio by weight. In addition, it is preferable that the proportion of the smaller diameter particulates and the larger diameter particulates with respect to the animal toilet sand is at least 90% in ratio by weight.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: May 23, 2017
    Assignee: Unicharm Corporation
    Inventors: Kenji Hiroshima, Shinya Kaneko, Takeshi Ikegami
  • Patent number: 9656770
    Abstract: A filling method for filling a container with animal litter, whereby large-sized granules and small-sized granules can be easily filled into containers in a predetermined blending ratio, and essentially the same blending ratio can be maintained for different containers. In a supply step in which the animal litter is supplied to a hopper, the animal litter is allowed to freely drop from above the storage space of the hopper, and in the storage space there are formed a first region in which the blending ratio of the small-sized granules with respect to the large-sized granules in a unit mass of the animal litter is equal to or less than the predetermined blending ratio and a second region in which the ratio is greater than the predetermined blending ratio, in an arrangement along the lengthwise direction of the storage space.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: May 23, 2017
    Assignee: Unicharm Corporation
    Inventors: Takeshi Ikegami, Kenji Hiroshima
  • Patent number: 9538722
    Abstract: Provided is an animal litter that is less liable to scatter and in which the depth of the solids is less liable to increase when a liquid such as urine has been absorbed. An animal litter composed of a plurality of particulates having water absorbency, wherein the particulates contain: long grains having a granularity of 4 mm or more and less than 10 mm, and a length that is greater than the diameter; and short grains having a granularity of 4 mm or more and less than 10 mm, and a length that is no more than the diameter. The long grains are provided with a core part primarily composed of pulp, and a coating layer containing highly water-absorbent resin and used for coating the core part. The weight ratio of the short grains in total of the long grains and the short grains is 10%-50%, inclusive.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: January 10, 2017
    Assignee: Unicharm Corporation
    Inventors: Kenji Hiroshima, Tomoko Hirao, Shinya Kaneko, Hidekazu Yamada, Takahiro Otomo
  • Publication number: 20160185024
    Abstract: An object of the present disclosure is to provide a method of producing animal litter containing bentonite that minimizes blocking of the path of conveyance by bentonite during production. The method of the present disclosure is as follows. A method of producing animal litter including bentonite, the method comprising a step of forming, from a starting material for animal litter containing bentonite, a starting mixture that contains 10 to 60 mass % of granules that remain on an 8.0 mm-aperture sieve and 40 to 90 mass % of granules that pass through an 8.0 mm-aperture sieve, a step of conveying the starting mixture on a path of conveyance, a step of loading the starting mixture that has been conveyed on the path of conveyance into a granulator capable of pulverizing and granulation, to pulverize at least the granules remaining on the 8.0 mm-aperture sieve while forming a granulated product, and a step of drying the granulated product.
    Type: Application
    Filed: December 30, 2014
    Publication date: June 30, 2016
    Inventors: Takeshi Ikegami, Kenji Hiroshima
  • Publication number: 20150351362
    Abstract: To provide animal toilet sand that allows easy recognition of an area where urine has been absorbed, easy observation of the color of urine, and suppression of odor of excreted urine. An animal toilet sand is composed of a plurality of particulates having a water absorbing property, wherein the particulates include: color change particles that are configured to include pulp and to change color upon absorbing moisture; and white particles that have a core portion which is configured to include pulp and a covering layer which is configured to include pulp, highly absorbent resin and fragrance, and to cover the core portion, the white particles not changing color upon absorbing moisture, and the color change particles are included at a higher ratio by weight than the white particles.
    Type: Application
    Filed: June 17, 2013
    Publication date: December 10, 2015
    Inventors: Kenji HIROSHIMA, Tatsuya SOGOU, Tomoko HIRAO, Shinya KANEKO, Hidekazu YAMADA, Takahiro OTOMO
  • Publication number: 20150314895
    Abstract: A filling method for filling a container with animal litter, whereby large-sized granules and small-sized granules can be easily filled into containers in a predetermined blending ratio, and essentially the same blending ratio can be maintained for different containers. In a supply step in which the animal litter is supplied to a hopper, the animal litter is allowed to freely drop from above the storage space of the hopper, and in the storage space there are formed a first region in which the blending ratio of the small-sized granules with respect to the large-sized granules in a unit mass of the animal litter is equal to or less than the predetermined blending ratio and a second region in which the ratio is greater than the predetermined blending ratio, in an arrangement along the lengthwise direction of the storage space.
    Type: Application
    Filed: April 30, 2014
    Publication date: November 5, 2015
    Inventors: Takeshi Ikegami, Kenji Hiroshima
  • Publication number: 20150272078
    Abstract: A method whereby, when a plurality of granulators are used for continuous production of animal litter from a molding material composed mainly of bentonite, it is possible to minimize any significant reduction in the amount of particulates granulated by the granulator and efficiently and continuously produce litter.
    Type: Application
    Filed: March 30, 2015
    Publication date: October 1, 2015
    Inventors: Takeshi Ikegami, Kenji Hiroshima
  • Publication number: 20150273523
    Abstract: It is an object of the present invention to provide a method of producing materials for disposal of animal excrement comprising an aromatic material and granules comprising a water-absorbing base material, whereby the aromatic material can reliably adhere onto the surfaces of the granules with suitable coverage, and the working environment is not potentially impaired by fly-off of the aromatic material. The production method of the invention comprises the steps of: partially adhering an aromatic material (2) onto granules (1), and transferring aromatic material (2) adhered on one granule to another by vibrating the granules partially adhering the aromatic material (2).
    Type: Application
    Filed: March 31, 2014
    Publication date: October 1, 2015
    Inventors: Takeshi Ikegami, Kenji Hiroshima
  • Publication number: 20150181833
    Abstract: To provide animal toilet sand that can prevent an aggregate from growing depth-wise upon absorption of liquid such as urine, and can suppress scattering. An animal toilet sand composed of a plurality of particulates mainly composed of bentonite, wherein: the particulates include smaller diameter particulates of at least 0.8 mm and no greater than 2 mm in grain size, and larger diameter particulates of at least 2 mm and no greater than 10 mm in grain size; and the particulates include the smaller diameter particulates in a range of at least 20% and no greater than 100% of the larger diameter particulates in ratio by weight. In addition, it is preferable that the proportion of the smaller diameter particulates and the larger diameter particulates with respect to the animal toilet sand is at least 90% in ratio by weight.
    Type: Application
    Filed: April 30, 2013
    Publication date: July 2, 2015
    Inventors: Kenji Hiroshima, Shinya Kaneko, Takeshi Ikegami
  • Publication number: 20150107524
    Abstract: Provided is an animal toilet sand that is less liable to scatter and in which the depth of the solids is less liable to increase when a liquid such as urine has been absorbed. An animal toilet sand composed of a plurality of particulates having water absorbency, wherein the particulates contain: long grains having a granularity of 4 mm or more and less than 10 mm, and a length that is greater than the diameter; and short grains having a granularity of 4 mm or more and less than 10 mm, and a length that is no more than the diameter. The long grains are provided with a core part primarily composed of pulp, and a coating layer containing highly water-absorbent resin and used for coating the core part. The weight ratio of the short grains in total of the long grains and the short grains is 10%-50%, inclusive.
    Type: Application
    Filed: April 26, 2013
    Publication date: April 23, 2015
    Inventors: Kenji Hiroshima, Tomoko Hirao, Shinya Kaneko, Hidekazu Yamada, Takahiro Otomo
  • Patent number: 8453604
    Abstract: Animal litter is provided that causes little damage to the legs or the like of animals using a litter box and generates a small amount of ammonia. The animal litter includes a plurality of particulate matter, in which the plurality of respective particulate matter includes a group of particles configured with an inorganic porous material and an inorganic binder which binds the group of particles together, and the inorganic binder includes a non-cement solidifying agent.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: June 4, 2013
    Assignee: Uni-Charm Corporation
    Inventors: Takayuki Matsuo, Takeshi Ikegami, Kenji Hiroshima, Hiroshi Matsumoto, Hiroyuki Kameyama
  • Patent number: 8327802
    Abstract: An animal litter box includes: an upper container, which having an upper opening for animals to come in and out, and a bottom portion, which allows fluid to pass through and over which particulate matter is spread; and a lower container having a lower opening provided below the bottom portion, and a holding portion for disposing a fluid absorbing sheet container in which the fluid absorbing sheet which absorbs fluid passing through the bottom portion is laid, wherein a fitting portion for fitting to an edge of a lower opening of the lower container is provided at a side or bottom of the upper container. The fitting portion is preferably a stepped portion or a concave portion.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: December 11, 2012
    Assignee: Uni-Charm Corporation
    Inventors: Takayuki Matsuo, Takeshi Ikegami, Kenji Hiroshima, Nobuaki Namikawa
  • Patent number: 8230811
    Abstract: Animal litter is provided that causes little damage to the legs or the like of animals using a litter box and generates a small amount of ammonia. The animal litter includes a plurality of particulate matter, in which the plurality of respective particulate matter includes a group of particles configured with an inorganic porous material and an inorganic binder which binds the group of particles together, and the inorganic binder includes a non-cement solidifying agent.
    Type: Grant
    Filed: May 2, 2007
    Date of Patent: July 31, 2012
    Assignee: Uni-Charm Corporation
    Inventors: Takayuki Matsuo, Takeshi Ikegami, Kenji Hiroshima, Hiroshi Matsumoto, Hiroyuki Kameyama
  • Publication number: 20120103269
    Abstract: Animal litter is provided that causes little damage to the legs or the like of animals using a litter box and generates a small amount of ammonia. The animal litter includes a plurality of particulate matter, in which the plurality of respective particulate matter includes a group of particles configured with an inorganic porous material and an inorganic binder which binds the group of particles together, and the inorganic binder includes a non-cement solidifying agent.
    Type: Application
    Filed: November 7, 2011
    Publication date: May 3, 2012
    Applicant: Uni-Charm Corporation
    Inventors: Takayuki Matsuo, Takeshi Ikegami, Kenji Hiroshima, Hiroshi Matsumoto, Hiroyuki Kameyama
  • Patent number: 8092630
    Abstract: A method of manufacturing an absorbent article for animals is provided, wherein U-shaped fixing parts(3,30) are mounted to each side edge of a base material(20) of a diaper main body, and then separated into fixing protrusions(31) along a cutout line(41) to serve as movable parts(21,22), thereby allowing firm tightening to the crural area of hind legs and the trunk.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: January 10, 2012
    Assignee: Uni-Charm Corporation
    Inventors: Takeshi Ikegami, Kenji Hiroshima