Patents by Inventor Masashi Saitou
Masashi Saitou 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: 11946012Abstract: The purpose of the present invention is to provide a lubricating oil composition capable of achieving good wear resistance and good scoring resistance of a bearing in addition to further fuel saving while maintaining durability and seizure resistance that can be used as a gear oil for a high-output, high-speed gear mechanism. A lubricating oil composition containing a combination of Fischer-Tropsch derived base oil having a low kinematic viscosity at high temperature, polyalphaolefin having a high kinematic viscosity at high temperature, and ester compound of a trivalent or higher polyol having a low kinematic viscosity at high temperature, and further contains a partial ester compound of an unsaturated fatty acid and a polyol, including a monoester compound of the unsaturated fatty acid and the polyol.Type: GrantFiled: October 23, 2020Date of Patent: April 2, 2024Assignee: SHELL USA, INC.Inventors: Noriaki Shinoda, Shinji Saitou, Misato Kishi, Shin-ichiro Shibata, Masashi Ogawa
-
Patent number: 11149974Abstract: An air conditioner selection system is a system for selecting an air conditioner including an indoor unit. The air conditioner selection system is provided with a floor area acquisition section, an allowable refrigerant amount acquisition section, and an air conditioner selection section. The floor area acquisition section acquires a floor area of a room where the indoor unit is to be installed. The allowable refrigerant amount acquisition section acquires an allowable refrigerant amount of a refrigerant allowed to remain in the room at least based on the floor area acquired by the floor area acquisition section. The air conditioner selection section selects the air conditioner including the indoor unit installable in the room at least based on the allowable refrigerant amount acquired by the allowable refrigerant amount acquisition section.Type: GrantFiled: March 20, 2018Date of Patent: October 19, 2021Assignee: Daikin Industries, Ltd.Inventors: Yukio Kitade, Nobuyoshi Kawakami, Kousuke Shiohama, Masashi Saitou
-
Patent number: 10655884Abstract: An air conditioner includes a plurality of indoor units of a refrigerant circuit to perform air conditioning of a space, and an air conditioning controller that controls operations of the plurality of indoor units by allocating the indoor units individually to a plurality of predetermined areas of the space. The controller performs an area registration process of allocating the indoor units individually to a plurality of area identification frames corresponding to the areas, and allocating a plurality of ventilators individually to the area identification frames where the indoor units are allocated. The ventilators perform ventilation of the space. The controller does not allow the operations of the plurality of the indoor units when there is an area identification frame to which none of the ventilators is allocated, in the plurality of area identification frames where the indoor units are allocated.Type: GrantFiled: April 18, 2016Date of Patent: May 19, 2020Assignee: Daikin Industries, Ltd.Inventors: Tsutomu Iura, Yasuyuki Aisaka, Taiki Sunahata, Masashi Saitou
-
Publication number: 20200033019Abstract: An air conditioner management system according to the present invention enables timely maintenance on an air conditioner installed in a region requiring predetermined maintenance. An air conditioner management system (100) includes a maintenance region information database (23a), an installation region information acquisition unit (12a), and a maintenance necessity determination unit (22c). The maintenance region information database (23a) stores maintenance region information about a region requiring predetermined maintenance on an air conditioner (50). The installation region information acquisition unit (12a) acquires air conditioner installation region information about a region where the air conditioner (50) is installed.Type: ApplicationFiled: March 20, 2018Publication date: January 30, 2020Inventors: Yukio KITADE, Nobuyoshi KAWAKAMI, Arina KASAGAWA, Masashi SAITOU
-
Publication number: 20200018502Abstract: An air conditioner selection system according to the present invention is capable of efficiently selecting an air conditioner that satisfies a safety standard requirement in a case where a refrigerant leaks. An air conditioner selection system (100) is a system for selecting an air conditioner (50) including an indoor unit (52). The air conditioner selection system (100) is provided with a floor area acquisition section (12a), an allowable refrigerant amount acquisition section (12b), and an air conditioner selection section (12c). The floor area acquisition section (12a) acquires a floor area of a room (3) where the indoor unit (52) is to be installed. The allowable refrigerant amount acquisition section (12b) acquires an allowable refrigerant amount of a refrigerant allowed to remain in the room (3) at least based on the floor area acquired by the floor area acquisition section (12a).Type: ApplicationFiled: March 20, 2018Publication date: January 16, 2020Inventors: Yukio KITADE, Nobuyoshi KAWAKAMI, Kousuke SHIOHAMA, Masashi SAITOU
-
Publication number: 20190383522Abstract: An indoor unit, being configured to constitute a refrigeration apparatus including a refrigerant circuit, includes: a heat exchanger; and a plurality of refrigerant pipes. R32 refrigerant is enclosed in the refrigerant circuit. At least one of the plurality of refrigerant pipes that circulates the R32 refrigerant has an outer diameter of (Do-1)/8 inches while another of the plurality of refrigerant pipes that circulates R410A refrigerant has an outer diameter of Do/8.Type: ApplicationFiled: December 22, 2017Publication date: December 19, 2019Applicant: Daikin Industries, Ltd.Inventors: Kousuke SHIOHAMA, Yoshiteru NOUCHI, Tarou YASUMATSU, Masashi SAITOU
-
Publication number: 20180135878Abstract: An air conditioner includes a plurality of indoor units of a refrigerant circuit to perform air conditioning of a space, and an air conditioning controller that controls operations of the plurality of indoor units by allocating the indoor units individually to a plurality of predetermined areas of the space. The controller performs an area registration process of allocating the indoor units individually to a plurality of area identification frames corresponding to the areas, and allocating a plurality of ventilators individually to the area identification frames where the indoor units are allocated. The ventilators perform ventilation of the space. The controller does not allow the operations of the plurality of the indoor units when there is an area identification frame to which none of the ventilators is allocated, in the plurality of area identification frames where the indoor units are allocated.Type: ApplicationFiled: April 18, 2016Publication date: May 17, 2018Inventors: Tsutomu IURA, Yasuyuki AISAKA, Taiki SUNAHATA, Masashi SAITOU
-
Patent number: 9752815Abstract: A heat source-side heat exchanger fan blowing air to a heat source-side heat exchanger performing heat exchange with refrigerant compressed in a compressor is controlled. A current detected temperature at a current time is converted to obtain a current converted high pressure value at the current time. The current converted high pressure is a pressure of refrigerant inside a high pressure-side pipe of the compressor. The current detected temperature is a temperature detected by a temperature detector attached to the heat source-side heat exchanger. A past detected temperature is converted to obtain a past converted high pressure value at the past time. A speed of the heat source-side heat exchanger fan is determined using a corrected converted high pressure value. The corrected converted high pressure value is obtained by correcting the current converted high pressure value based on the past converted high pressure value.Type: GrantFiled: May 19, 2011Date of Patent: September 5, 2017Assignee: Daikin Industries, Ltd.Inventors: Masashi Saitou, Junichi Shimoda, Tatsuya Makino
-
Publication number: 20130061619Abstract: A heat source-side heat exchanger fan blowing air to a heat source-side heat exchanger performing heat exchange with refrigerant compressed in a compressor is controlled. A current detected temperature at a current time is converted to obtain a current converted high pressure value at the current time. The current converted high pressure is a pressure of refrigerant inside a high pressure-side pipe of the compressor. The current detected temperature is a temperature detected by a temperature detector attached to the heat source-side heat exchanger. A past detected temperature is converted to obtain a past converted high pressure value at the past time. A speed of the heat source-side heat exchanger fan is determined using a corrected converted high pressure value. The corrected converted high pressure value is obtained by correcting the current converted high pressure value based on the past converted high pressure value.Type: ApplicationFiled: May 19, 2011Publication date: March 14, 2013Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Masashi Saitou, Junichi Shimoda, Tatsuya Makino