Patents by Inventor Tsutomu Sakuma

Tsutomu Sakuma 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: 7448226
    Abstract: A refrigerator has a refrigerating cycle sequentially connecting a compressor, a condenser, a drawing mechanism, and evaporator, an accumulator, an inlet temperature sensor and an outlet temperature sensor for detecting the temperatures of the inlet and outlet of the evaporator, and a cooling fan for cooling the compressor. When the difference between the temperature detected by the inlet temperature sensor and the temperature detected by the outlet temperature sensor is a predetermined value or more, the cooling fan is stopped.
    Type: Grant
    Filed: March 27, 2003
    Date of Patent: November 11, 2008
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Jun Yamashita, Yasushi Takagi, Susumu Saruta, Munehiro Horie, Tsutomu Sakuma
  • Patent number: 7302398
    Abstract: It was difficult for previous health management support systems to grasp daily health condition quantitatively through using comprehensive indexes of personal health conditions, optimize advice as healthcare guidance, and show its expected effect in a favorable way. The disclosed method and system implement the following: estimating a predicted period of healthy life expectancy of each person who underwent health screening from health screening report data obtained through the health screening report data entry step, wherein healthy life expectancy prediction data is used that is prepared as basic data for predicting healthy life expectancy from a diversity of health screening report data. The predicted period of healthy life expectancy and related information for each person are displayed by display means or printed out by printing means.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: November 27, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Hideyuki Ban, Hiroyuki Kuriyama, Hitoshi Matsuo, Kuniaki Minami, Tsutomu Sakuma
  • Patent number: 7143591
    Abstract: A refrigerator of the present invention includes a refrigerating cycle including a compressor, a condenser, an expander and an evaporator and filled with a flammable refrigerant, a load detector detecting a change in load of the compressor, and a control device detecting a damage which is a cause for leak of the refrigerant from the refrigerating cycle, based on a detection output of the load detector.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: December 5, 2006
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Consumer Marketing Corporation, Toshiba Ha Products Co., Ltd
    Inventors: Hikaru Nonaka, Shinji Hirai, Yoshihiko Uenoyama, Tsutomu Sakuma, Susumu Saruta, Shoji Hashimoto
  • Publication number: 20050223722
    Abstract: A refrigerator has a refrigerating cycle sequentially connecting a compressor, a condenser, a drawing mechanism, and evaporator, an accumulator, an inlet temperature sensor and an outlet temperature sensor for detecting the temperatures of the inlet and outlet of the evaporator, and a cooling fan for cooling the compressor. When the difference between the temperature detected by the inlet temperature sensor and the temperature detected by the outlet temperature sensor is a predetermined value or more, the cooling fan is stopped.
    Type: Application
    Filed: March 27, 2003
    Publication date: October 13, 2005
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Jun Yamashita, Yasushi Takagi, Susumu Saruta, Munehiro Horie, Tsutomu Sakuma
  • Publication number: 20050086952
    Abstract: A refrigerator-freezer is described, in which refrigerant leakage from the refrigeration cycle can be safely detected. The refrigerator-freezer comprises: a refrigeration cycle formed by a compressor, a capillary, an evaporator and an accumulator connected in series, and filled with a flammable refrigerant; a cooling fan configured to blow the cold air cooled by the evaporator in the refrigerator-freezer; and a refrigerant leakage detection system configured to detect leakage of the flammable refrigerant, wherein the refrigerant leakage detection system is provided with a temperature sensor configured to measure the temperature of a refrigerant conduit of the evaporator and judges that the flammable refrigerant is leaking in the low pressure side of the refrigeration cycle when the temperature is detected by the temperature sensor with the compressor being halted is no lower than a predetermined temperature.
    Type: Application
    Filed: September 19, 2002
    Publication date: April 28, 2005
    Inventors: Hikaru Nonaka, Tsutomu Sakuma, Munehiro Horie, Yoshihiko Uenoyama, Shoji Hashimoto, Shinji Hirai, Susumu Saruta, Ryousuke Yamamoto, Katsushi Sumihiro
  • Publication number: 20050039469
    Abstract: A refrigerator of the present invention includes a refrigerating cycle including a compressor (24), a condenser (25), an expander (30, 31) and an evaporator (16, 20) and filled with a flammable refrigerant, a load detector (41) detecting a change in load of the compressor (25), and a control device (43) detecting a damage which is a cause for leak of the refrigerant from the refrigerating cycle, based on a detection output of the load detector (41).
    Type: Application
    Filed: October 30, 2002
    Publication date: February 24, 2005
    Inventors: Hikaru Nonaka, Shinji Hirai, Yoshihiko Uenoyama, Tsutomu Sakuma, Susumu Saruta, Shoji Hashimoto
  • Publication number: 20030101075
    Abstract: It was difficult for previous health management support systems to grasp daily health condition quantitatively through using comprehensive indexes of personal health conditions, optimize advice as healthcare guidance, and show its expected effect in a favorable way. The disclosed method and system implement the following: estimating a predicted period of healthy life expectancy of each person who underwent health screening from health screening report data obtained through the health screening report data entry step, wherein healthy life expectancy prediction data is used that is prepared as basic data for predicting healthy life expectancy from a diversity of health screening report data. The predicted period of healthy life expectancy and related information for each person are displayed by display means or printed out by printing means.
    Type: Application
    Filed: February 21, 2002
    Publication date: May 29, 2003
    Applicant: Hitachi, Ltd.
    Inventors: Hideyuki Ban, Hiroyuki Kuriyama, Hitoshi Matsuo, Kuniaki Minami, Tsutomu Sakuma
  • Patent number: 6504269
    Abstract: A touch type input device is used for various forms of control. A primary side line is connected to a power source, and a secondary side circuit ground through a power transformer are connected by an impedance element. Flat electrodes to be touched by a finger are formed on one side of an insulating base material, and are connected to a ground current detection circuit through a high resistor and a low pass filter. A control circuit for converting the output of the ground current detection circuit into a control signal for an electronic appliance, and a display unit are provided. Therefore, an input device having plural touch switches disposed on a base material in a free shape and layout can be obtained.
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: January 7, 2003
    Assignee: Matsushita Electrical Industrial Co., Ltd.
    Inventors: Akio Miyajima, Tamotsu Yamamoto, Tsutomu Sakuma, Akira Nakanishi, Toyoshi Fukumura
  • Patent number: 6460357
    Abstract: A refrigerator has a two-stage compressor and means for switching refrigerant flow between a primary channel and a bypassing channel at downstream of a condenser that is connected with an outlet of the two-stage compressor. The primary channel extends from a first exit of the means for switching, through a first capillary tube and a first evaporator, to a gas-liquid separator, a gas-exit of which is connected with a second evaporator through a second capillary tube. The bypassing channel extends from a second exit of the means for switching, through a bypass capillary, to the gas-liquid separator. When flow of refrigerant in the second evaporator is substantially interrupted and so detected, refrigerant flow is switched to the bypassing channel, by means for controlling.
    Type: Grant
    Filed: December 12, 2001
    Date of Patent: October 8, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takashi Doi, Tsutomu Sakuma, Koji Kashima, Akihiro Noguchi
  • Publication number: 20020069654
    Abstract: A refrigerator has a two-stage compressor and means for switching refrigerant flow between a primary channel and a bypassing channel at downstream of a condenser that is connected with an outlet of the two-stage compressor. The primary channel extends from a first exit of the means for switching, through a first capillary tube and a first evaporator, to a gas-liquid separator, a gas-exit of which is connected with a second evaporator through a second capillary tube. The bypassing channel extends from a second exit of the means for switching, through a bypass capillary, to the gas-liquid separator. When flow of refrigerant in the second evaporator is substantially interrupted and so detected, refrigerant flow is switched to the bypassing channel, by means for controlling.
    Type: Application
    Filed: December 12, 2001
    Publication date: June 13, 2002
    Inventors: Takashi Doi, Tsutomu Sakuma, Koji Kashima, Akihiro Noguchi
  • Patent number: 6397608
    Abstract: A refrigerator having a refrigerator evaporator and a freezer evaporator, capable of controlling the refrigerant circulation correctly and reducing the delay in the refrigerant behaviors. When freezer mode is to be switched to refrigerator mode, at the end of the freezer mode, a refrigerant recovery run recovers the refrigerant from the freezer evaporator and feeds it to a condenser before the refrigerator mode by running a compressor while blocking the refrigerant to the freezer evaporator and by running a compressor fan.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: June 4, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tsutomu Sakuma, Koji Kashima, Masato Tago, Takashi Doi, Akihiro Noguchi
  • Patent number: 6370895
    Abstract: A refrigerator includes a first compartment, a second compartment, a compressor compressing and discharging refrigerant, a first evaporator connected to the compressor to cool the first compartment, the first evaporator having an outlet, a second evaporator connected to the compressor in parallel with the first evaporator to cool the second compartment, the second evaporator having an outlet, a check valve connected between the outlets of the first and second evaporators to prevent the refrigerant out of the first evaporator from entering the second evaporator, a flow-path switching element for switching a cooling mode between a first cooling mode in which the refrigerant discharged from the compressor is caused to flow through the first evaporator to thereby cool the first compartment and a second cooling mode in which the refrigerant discharged from the compressor is caused to flow through the second evaporator to thereby cool the second compartment, and a control device provided for controlling the compres
    Type: Grant
    Filed: September 21, 2000
    Date of Patent: April 16, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tsutomu Sakuma, Koji Kashima, Masato Tago, Takashi Doi, Akihiro Noguchi
  • Patent number: 5381671
    Abstract: An air conditioning apparatus apparatus equipped with a cooling and heating cycle utilizing a refrigerant and equipped with an improved ice storage therein. The air conditioning apparatus includes a thermal storage tank for storing heat of refrigerant circulating in the cooling cycle; thermal storage refrigerant positioned parallel to an indoor heat exchanger; an auxiliary compressing unit provided in the thermal storage refrigerant pipe; an expansion unit for controlling expansion of the refrigerant. An method for the air conditioning apparatus. The method includes the steps of providing an auxiliary compressor; cooling a gaseous refrigerant from the auxiliary compressor; heat-exchanging the gaseous refrigerant; condensing the refrigerant; sending the condensed refrigerant to the indoor heat exchanger; evaporating the condensed refrigerant; and sending the evaporated refrigerant back to the auxiliary compressor.
    Type: Grant
    Filed: July 14, 1993
    Date of Patent: January 17, 1995
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazuo Saito, Tsutomu Sakuma
  • Patent number: 5201188
    Abstract: A refrigerant recovering sealed container has at least a refrigerant passing portion. A connecting portion connects the refrigerant passing portion of the refrigerant recovering sealed container to a refrigerant supply/discharge port of an existing refrigeration cycle unit. A cooling section cools the interior of the refrigerant recovering sealed container so that a refrigerant filled in the existing refrigeration cycle unit is introduced into the refrigerant recovering sealed container through the connecting portion as a gaseous refrigerant and is recovered as a liquefied refrigerant. A measuring section measures an amount of the refrigerant recovered in the refrigerant recovering sealed container as the liquefied refrigerant by the cooling section. A control unit supplies control signals for activating the connecting portion, the cooling section, and the measuring section in a predetermined order.
    Type: Grant
    Filed: August 2, 1991
    Date of Patent: April 13, 1993
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Tsutomu Sakuma
  • Patent number: 4913256
    Abstract: A motorcycle includes a substantially longitudinal frame, front and rear wheels rotatably supported on the frame, an engine mounted on the frame between the front and rear wheels, a rear fork supporting the rear wheel and vertically swingably mounted on a rear end of the frame, a rear fender disposed in the vicinity of an upper portion of the rear wheel and covering the upper portion of the rear wheel, and a fairing device having a ram air inlet port defined in a front portion thereof and extending from a position in front of the frame in covering relation to the engine toward a position above the rear wheel where the fairing device covers the rear fender in surrounding relation thereto. The fairing device cooperates with the rear fender in providing a discharge duct defining a discharge air passage therein and having an air discharge port defined in an open end portion thereof.
    Type: Grant
    Filed: May 29, 1987
    Date of Patent: April 3, 1990
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventor: Tsutomu Sakuma
  • Patent number: 4813511
    Abstract: Motorcycles having front and rear swing arm assemblies as the suspension members therefor are employed with lower frame structures incorporating the power unit as a structural element thereof. The lower frame structures are shown to include brackets mounted to the power unit itself, separate loop frame members and an under channel member. Upper frames are shown to be associated with the lower frames. The upper frames do not support the suspension systems but do support motorcycle equipment such a fuel tanks, air cleaners and the like.
    Type: Grant
    Filed: December 3, 1987
    Date of Patent: March 21, 1989
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Ken Yamaguchi, Akio Kawano, Kenji Honma, Tsutomu Sakuma, Keizi Ono
  • Patent number: 4776624
    Abstract: A rearview mirror mounting apparatus for detachably mounting a rearview mirror onto a side portion of a vehicle body of a vehicle such as automobile, motorcycle and the like. Between a mounting seat formed on the rearview mirror and the vehicle body, there is provided an elastic connecting piece having an excessive length when the mounting seat is fixed to the vehicle body by a bolt or the like. One end of the connecting piece is retainably engagable with the mounting seat and the other end with the vehicle body. The connecting piece is contained within the rearview mirror mounting apparatus. Although, the rearview mirror is detachable from the vehicle body, it cannot be separated apart from the vehicle body any further than the length of the connecting piece since the connecting piece is retainably engaged at one end with the mounting seat of the rearview mirror and at the other end with the vehicle body.
    Type: Grant
    Filed: April 1, 1987
    Date of Patent: October 11, 1988
    Assignees: Honda Giken Kogyo Kabushiki Kaisha, Kabushiki Kaisha Matsuyama Seisakusho
    Inventors: Tsutomu Sakuma, Nobuyoshi Daigo
  • Patent number: 4776422
    Abstract: A motorcycle has a frame assembly having at least a head pipe on which a front fork is steerably supported, a pair of laterally spaced main pipes of rectangular cross section extending rearwardly from the head pipe, and a rear fork swingably coupled to the main pipes, a front wheel rotatably supported on the front fork, a rear wheel rotatably supported on the rear fork, an engine disposed between the front and rear wheels and supported on the frame assembly, a fairing extending rearwardly from a position in front of the head pipe in covering relation to part of the engine and the frame assembly, and a pair of laterally spaced side covers disposed adjacent to and behind the fairing. The fairing has an upper end fastened to the main pipes. The main pipes on rear portions thereof brackets with bolt holes therein. The rear edge of the fairing and the front edges of the side covers are fastened together to the brackets.
    Type: Grant
    Filed: May 29, 1987
    Date of Patent: October 11, 1988
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventor: Tsutomu Sakuma
  • Patent number: D299447
    Type: Grant
    Filed: September 5, 1986
    Date of Patent: January 17, 1989
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Tsutomu Sakuma, Toshiaki Kishi, Tamotsu Miura, Takeshi Ooba
  • Patent number: D427944
    Type: Grant
    Filed: December 2, 1998
    Date of Patent: July 11, 2000
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Tsutomu Sakuma, Tadao Hiruma