Patents by Inventor Naoto Katsumata
Naoto Katsumata 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).
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Publication number: 20240111166Abstract: A mirror device includes a mirror including a main body portion having a reflection surface that reflects display light, and a rotating shaft protruding from a first side wall of the main body portion, and a driving member that includes a motor including an output shaft arranged parallel to the rotating shaft, and neighboring the rotating shaft in a direction orthogonal to a rotation axis line of the rotating shaft, a first gear portion coupled to the output shaft, and a second gear portion engaged with the first gear portion, and coupled to the rotating shaft, and rotates the mirror by transmitting rotation of the output shaft of the motor to the rotating shaft via the first gear portion and the second gear portion.Type: ApplicationFiled: September 15, 2023Publication date: April 4, 2024Inventors: Yuki Miyoshi, Yasuhiro Katsumata, Akira Yamanaka, Naoto Tsubakihara, Hiroshi Sano, Tetsuya Suganuma, Masaaki Nakamura
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Patent number: 11718837Abstract: To find a novel lipase suitable for processing of oils and fats and to use and apply the lipase. Provided are a novel lipase including an amino acid sequence having 90% or more identity with an amino acid sequence of SEQ ID NO: 1 or 2, and an enzyme preparation containing the same as an active ingredient. The enzyme preparation is used for modifying and improving the physical properties of oils and fats.Type: GrantFiled: July 29, 2020Date of Patent: August 8, 2023Assignee: AMANO ENZYME INC.Inventors: Tomohiro Kimura, Tomoya Ryoki, Yusuke Tanaka, Naoto Katsumata, Yukihide Sato
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Publication number: 20210214696Abstract: To find a novel lipase suitable for processing of oils and fats and to use and apply the lipase. Provided are a novel lipase including an amino acid sequence having 90% or more identity with an amino acid sequence of SEQ ID NO: 1 or 2, and an enzyme preparation containing the same as an active ingredient. The enzyme preparation is used for modifying and improving the physical properties of oils and fats.Type: ApplicationFiled: July 29, 2020Publication date: July 15, 2021Applicant: AMANO ENZYME INC.Inventors: Tomohiro Kimura, Tomoya Ryoki, Yusuke Tanaka, Naoto Katsumata, Yukihide Sato
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Patent number: 6101837Abstract: An ice thermal storage type air-conditioner and an ice thermal storage tank, in which unused portions in the ice thermal storage tank is reduced to enhance an ice filling rate in the ice thermal storage tank or to prevent excessive icing from damaging a heat transfer unit.Type: GrantFiled: March 9, 1999Date of Patent: August 15, 2000Assignee: Hitachi, Ltd.Inventors: Masao Imanari, Toshihiko Fukushima, Toshio Hatada, Katsumi Matsubara, Naoto Katsumata
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Patent number: 5709090Abstract: A refrigerating system having a refrigerating cycle constructed by connecting an accumulator, a refrigerant compressor, a four-way valve, an outdoor unit heat exchanger, an outdoor unit expander, a receiver, an indoor unit expander and an indoor unit heat exchanger sequentially by pipes. Normally, excessive refrigerant is stored in the receiver and when it becomes necessary to raise a ratio of lower boiling point refrigerants, a flow amount of the refrigerant is decreased by restricting the outdoor unit expander during the cooling operation or by restricting the indoor unit expander during the heating operation to move the excessive refrigerant within the receiver to the accumulator. Thereby, the composition of the refrigerant circulating within the refrigerating system using non-azeotrophic refrigerant mixtures may be changed without using a complicated system structure or control method thereof and the capacity of the refrigerating cycle may be changed.Type: GrantFiled: November 27, 1995Date of Patent: January 20, 1998Assignee: Hitachi, Ltd.Inventors: Takeshi Endo, Hirokiyo Terada, Naoto Katsumata, Kensaku Oguni, Kazumoto Urata, Masatoshi Muramatsu, Michiko Endo
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Patent number: 5410887Abstract: A mixed-refrigerant comprising two or more types of refrigerants having different boiling points is enclosed in a refrigerating cycle and a capacitance sensor is used as a device for detecting a composition of the mixed-refrigerant. The electrostatic capacitance sensor is disposed in an evaporation portion of the refrigerating cycle. The refrigerating cycle has a refrigerant composition calculating device for calculating a composition of the refrigerant in the refrigerating cycle in accordance with an output signal from the capacitance sensor and an adequate composition judging device for judging whether or not the composition of the mixed-refrigerant circulating in the refrigerating cycle is in an adequate state in accordance with an output signal from the refrigerant composition calculating device.Type: GrantFiled: September 30, 1993Date of Patent: May 2, 1995Assignee: Hitachi, Ltd.Inventors: Kazumoto Urata, Kensaku Oguni, Kyuhei Ishibane, Naoto Katsumata
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Patent number: 5360060Abstract: A fin-tube type heat exchanger has parallel heat transfer tubes and a stack of a plurality of plate fins mounted on the tubes. Heat exchange is conducted between a first fluid flowing through the tubes and a second fluid flowing through the stack across each of the fins. Each fin has flat tube-mounting portions spaced in the longitudinal direction of the fin and formed with tube-mounting holes and a louver section disposed between each adjacent pair of tube-mounting portions. The louver section has elongated slats extending longitudinally of the fin and having side edges each spaced from an adjacent side edge of an adjacent slat. The slats are classified into two groups in respect of the cross-sectional shape. The slats of one group have generally flat cross-sections to reduce the resistance of the fin to the flow of the second fluid through the stack and are disposed in planes offset from the plane of the tube-mounting portions.Type: GrantFiled: December 8, 1992Date of Patent: November 1, 1994Assignee: Hitachi, Ltd.Inventors: Takeo Tanaka, Toshio Hatada, Masaaki Itoh, Takao Senshu, Naoto Katsumata, Yoshihiko Mochizuki, Hirokiyo Terada, Minetoshi Izushi, Minoru Sato, Hiromi Tsuji, Makoto Nagai
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Patent number: 4411140Abstract: An absorption type cooling and heating system including a generator, an outdoor heat exchanger, pressure reducing devices, two indoor heat exchangers, an absorber, a solution pump, change-over valves, on-off valves and check valves, wherein in a cooling mode the outdoor heat exchanger functions as a condenser and the two indoor heat exchangers function as evaporators and in a heating mode one of the two outdoor heat exchangers functions as a condenser, the other outdoor heat exchanger functions as an absorber and the outdoor heat exchanger and the absorber function as evaporators, so that the heat of a refrigerant in a gaseous state of high temperature and the heat of absorption generated at the absorber can both be utilized as heating heat sources. In a defrosting mode, the outdoor heat exchanger and the absorber function as condensers and one of the two indoor heat exchangers functions as an absorber, so that space heating can be carried out even during the defrosting mode.Type: GrantFiled: February 1, 1982Date of Patent: October 25, 1983Assignee: Hitachi, Ltd.Inventors: Naoto Katsumata, Noriaki Horiuchi, Shigeru Kimura