Patents by Inventor Keisuke Iwai

Keisuke Iwai 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).

  • Publication number: 20240178129
    Abstract: A memory device includes an alternating stack of insulating layers and composite layers, where each of the composite layers contains an electrically conductive layer and a dielectric material plate, memory openings vertically extending through the alternating stack, memory opening fill structures located in the memory openings, where each of the memory opening fill structures includes a respective vertical stack of memory elements and a vertical semiconductor channel and a plurality of integrated line-and-via structures. Each of the plurality of integrated line-and-via structures includes a conductive plate portion that contacts the electrically conductive layer of a respective one of the composite layers, and a conductive via portion that is adjoined to a top surface of the conductive plate portion and vertically extends through a respective overlying subset of the insulating layers and a subset of the dielectric material plates of the composite layers.
    Type: Application
    Filed: July 10, 2023
    Publication date: May 30, 2024
    Inventors: Takayuki MAEKURA, Takaaki IWAI, Keisuke IZUMI
  • Patent number: 11926721
    Abstract: Provided is a silicone rubber molded body (1) including a conductive ink coating layer (3) that is disposed on a portion of the surface of the silicone rubber molded body (1). The conductive ink coating layer (3) contains a hydrolyzable organosilicon compound. Using the silicone rubber molded body with a saturated water absorption of 0.10 to 1.50% by mass and/or using a conductive ink containing water improves the affinity between the surface of the silicone rubber molded body (1) and the conductive ink coating layer (3). A residual ink area is an average of 20% or more and 100% or less after the conductive ink coating layer (3) is subjected to an abrasion test. With this configuration, the silicone rubber molded body has a high affinity between the silicone rubber and the conductive ink, good durability under continuous stress, and stability in long-term use. Further provided is a method for producing the silicone rubber molded body.
    Type: Grant
    Filed: January 13, 2022
    Date of Patent: March 12, 2024
    Assignee: Fuji Polymer Industries Co., Ltd.
    Inventors: Tomoki Matsumura, Keisuke Kawahama, Makoto Iwai
  • Patent number: 11639799
    Abstract: A hot water supply device including an inlet pipe, an outlet pipe, a burner unit, a heat exchanger, an exhaust aperture, a first temperature sensor detecting a measured exhaust temperature of the exhaust gas, a second temperature sensor detecting a water temperature of water entering the inlet pipe, and a processor. The processor is configured to obtain an error between the measured exhaust temperature and an estimated exhaust temperature, and detects that scale clogging has occurred inside the heat exchange tubing based on an index which is generated using the error between the measured exhaust temperature and the estimated exhaust temperature. The estimated exhaust temperature is a first predetermined value that is determined using a numerical equation which has at least the water temperature of water entering the inlet pipe and a scale number of the hot water supply device as variables of the numerical equation.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: May 2, 2023
    Assignee: NORITZ CORPORATION
    Inventors: Keisuke Iwai, Kazuhiro Nishimura, Masahiro Iguchi
  • Publication number: 20220196253
    Abstract: A hot water supply device including an inlet pipe, an outlet pipe, a burner unit, a heat exchanger, an exhaust aperture, a first temperature sensor detecting a measured exhaust temperature of the exhaust gas, a second temperature sensor detecting a water temperature of water entering the inlet pipe, and a processor. The processor is configured to obtain an error between the measured exhaust temperature and an estimated exhaust temperature, and detects that scale clogging has occurred inside the heat exchange tubing based on an index which is generated using the error between the measured exhaust temperature and the estimated exhaust temperature. The estimated exhaust temperature is a first predetermined value that is determined using a numerical equation which has at least the water temperature of water entering the inlet pipe and a scale number of the hot water supply device as variables of the numerical equation.
    Type: Application
    Filed: December 17, 2020
    Publication date: June 23, 2022
    Applicant: NORITZ CORPORATION
    Inventors: Keisuke IWAI, Kazuhiro NISHIMURA, Masahiro IGUCHI
  • Publication number: 20020021766
    Abstract: A television receiving apparatus and its remote controller are provided with storage medium slots, respectively. When a user enters program reservation data on a remote controller, this program reservation data is stored in an external memory via the storage medium slot. The user attaches this external memory to the storage medium slot of the television receiving apparatus. The television receiving apparatus reads the program reservation data from the external memory and specifies a broadcast program corresponding to the program reservation data from already received and stored EPG information. The television receiving apparatus registers reservation setting based on an information element representing this broadcast program.
    Type: Application
    Filed: March 15, 2001
    Publication date: February 21, 2002
    Inventor: Keisuke Iwai