Patents by Inventor Shigeo Numazawa
Shigeo Numazawa 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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Patent number: 6619071Abstract: In an adsorption-type refrigerating apparatus, an adsorber includes therein an adsorbent having a temperature-dependent characteristic in which an amount adsorbed in an adsorption step is larger than an amount adsorbed in a desorption step, even when a vapor pressure rate in the adsorption step is equal to or lower than a vapor pressure rate in the desorption step. Therefore, even when the cooling temperature of outside air for cooling the adsorbent increases, a sufficient cooling capacity can be obtained. In addition, a difference between the amount adsorbed in the adsorption step and the amount adsorbed in the desorption step can be made larger.Type: GrantFiled: June 6, 2002Date of Patent: September 16, 2003Assignee: Denso CorporationInventors: Hideaki Sato, Katsuya Ishii, Atsushi Kosaka, Shigeo Numazawa, Seiji Inoue, Kouji Inagaki, Kazuhisa Yano, Norihiko Setoyama, Yoshiaki Fukuyama
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Patent number: 6615603Abstract: Heat is absorbed from a first heat emitter and a second heat emitter is cooled by an adsorption type refrigerator operating by that absorbed heat. When the amount of emission of heat of the first heat emitter exceeds a predetermined amount of heat, the heat absorbed in the heat medium by a first heat collector is discharged to the outside air by an outdoor unit without being supplied to the adsorbent of the refrigerator. On the other hand, when the amount of emission of heat of the first heat emitter falls below a predetermined amount, the heat medium which had been supplied to a first heat exchanger for heating the adsorbent is switched to return to the first heat collector without flowing to the outdoor unit.Type: GrantFiled: February 25, 2002Date of Patent: September 9, 2003Assignee: Denso CorporationInventors: Masaaki Tanaka, Shigeo Numazawa, Katsuya Ishii, Hideaki Sato, Shin Honda, Yoshiyuki Okamoto, Junichiro Kanamori, Tadayoshi Terao
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Publication number: 20030005721Abstract: In an adsorption-type refrigerating apparatus, an adsorber includes therein an adsorbent having a temperature-dependent characteristic in which an amount adsorbed in an adsorption step is larger than an amount adsorbed in a desorption step, even when a vapor pressure rate in the adsorption step is equal to or lower than a vapor pressure rate in the desorption step. Therefore, even when the cooling temperature of outside air for cooling the adsorbent increases, a sufficient cooling capacity can be obtained. In addition, a difference between the amount adsorbed in the adsorption step and the amount adsorbed in the desorption step can be made larger.Type: ApplicationFiled: June 6, 2002Publication date: January 9, 2003Inventors: Hideaki Sato, Katsuya Ishii, Atsushi Kosaka, Shigeo Numazawa, Seiji Inoue, Kouji Inagaki, Kazuhisa Yano, Norihiko Setoyama, Yoshiaki Fukushima
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Patent number: 6474716Abstract: A wiring system of indication instrument for vehicle includes a transverse member disposed inside the indicating instrument to extend in a transverse direction of the vehicle, a wire-integrated cluster disposed inside the indication instrument and an electric distributor box disposed at an end of the transverse member. The cluster includes a bundle of main lead wires disposed to extend straight along said transverse member, and the distributor box distributes electric power and signals transmitted by the wire-integrated cluster.Type: GrantFiled: December 8, 2000Date of Patent: November 5, 2002Inventors: Kazushi Shikata, Shigeo Numazawa, Tomohiro Kamiya, Satoshi Mizutani, Hikaru Sugi
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Patent number: 6430951Abstract: The evaporator and the condenser are disposed in a duct. First bypass passage is disposed at the side of the condenser and first air mixing damper rotates to control air bypassing amount. Further second bypass passage is formed at the side of the evaporator and second mixing damper rotates to control air bypassing amount. Cooling rate at the evaporator and heating rate at the condenser are varied so that air adjusted in proper temperature is generated and discharged from each outlets into a room. An outside heat exchanger is disposed the outside of the duct. Refrigerant flow is randomly switched among the outside heat exchanger, the evaporator and the condenser so that cooling, heating, dehumidifying, dehumidified-heating and defrosting operations are performed.Type: GrantFiled: November 8, 2000Date of Patent: August 13, 2002Assignee: Denso CorporationInventors: Kunio Iritani, Shigeo Numazawa, Kenichi Fujiwara, Yasushi Yamanaka, Akira Isaji, Nobunao Suzuki
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Publication number: 20020092315Abstract: Heat is absorbed from a first heat emitter and a second heat emitter is cooled by an adsorption type refrigerator operating by that absorbed heat. When the amount of emission of heat of the first heat emitter exceeds a predetermined amount of heat, the heat absorbed in the heat medium by a first heat collector is discharged to the outside air by an outdoor unit without being supplied to the adsorbent of the refrigerator. On the other hand, when the amount of emission of heat of the first heat emitter falls below a predetermined amount, the heat medium which had been supplied to a first heat exchanger for heating the adsorbent is switched to return to the first heat collector without flowing to the outdoor unit.Type: ApplicationFiled: February 25, 2002Publication date: July 18, 2002Inventors: Masaaki Tanaka, Shigeo Numazawa, Katsuya Ishii, Hideaki Sato, Shin Honda, Yoshiyuki Okamoto, Junichiro Kanamori, Tadayoshi Terao
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Patent number: 6409590Abstract: There is provided an air guide duct for a vehicle, the air guide duct connected for communication with an air conditioner unit provided in a passengers' room in a vehicle, the air guide duct adapted to pass and guide temperature regulated air supplied from the air conditioner unit, the air guide duct comprising a first base body constituting one duct half, the first base body including a mounting part for allowing a wire element of an electrical component system to be contained along the air guide duct, and a second base body constituting the other duct half, the second base body covered over the first base body to define an air flowing space therebetween, the second base body including a cover piece which laterally extends from the duct, wherein the mounting part containing the wire element is so constructed as to be covered with the cover piece.Type: GrantFiled: November 27, 2000Date of Patent: June 25, 2002Assignees: Inoac Corporation, Denso CorporationInventors: Hiroshi Suzuki, Kazushi Shikata, Shigeo Numazawa, Tomohiro Kamiya
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Patent number: 6351962Abstract: In a vehicle cockpit module assembly having at least an air conditioner disposed inside a dashboard, a protrusion piece for determining an arrangement position of an air-conditioning unit of the air conditioner within the dashboard is provided at the air-conditioning unit. A front load support portion for supporting a front side load of the air-conditioning unit is constructed by a drain pipe of the air-conditioning unit, and a rear load support portion for supporting a rear side load of the air-conditioning unit is constructed by rear foot ducts of the air-conditioning unit. Accordingly, in the cockpit module assembly, the air conditioner can be stably supported in the vehicle.Type: GrantFiled: November 27, 2000Date of Patent: March 5, 2002Assignee: Denso CorporationInventors: Satoshi Mizutani, Kazushi Shikata, Shigeo Numazawa, Tomohiro Kamiya
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Patent number: 6296303Abstract: The present invention integrates a blower unit into a vehicle dashboard and of reducing blower-vibration transmittance to a steering unit. In a vehicle, at least a reinforcement member having a steering support portion and an air conditioner are disposed inside a dashboard, at least a portion of a blower unit of the air conditioner is fixed to a side bracket for fixing the reinforcement member to a vehicle body. Further, the blower unit is integrally mounted inside the dashboard via the reinforcemnt member. This manner can attain both of realizing the modulization that the blower unit is integrated into the vehicle dashboard and of reducing the vibration transmittance from the blower unit to the steering support portion via the reinforcement member.Type: GrantFiled: November 14, 2000Date of Patent: October 2, 2001Assignee: Denso CorporationInventors: Tomohiro Kamiya, Kazushi Shikata, Shigeo Numazawa
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Publication number: 20010003404Abstract: A wiring system of indication instrument for vehicle includes a transverse member disposed inside the indicating instrument to extend in a transverse direction of the vehicle, a wire-integrated cluster disposed inside the indication instrument and an electric distributor box disposed at an end of the transverse member. The cluster includes a bundle of main lead wires disposed to extend straight along said transverse member, and the distributor box distributes electric power and signals transmitted by the wire-integrated cluster.Type: ApplicationFiled: December 8, 2000Publication date: June 14, 2001Inventors: Kazushi Shikata, Shigeo Numazawa, Tomohiro Kamiya, Satoshi Mizutani, Hikaru Sugi
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Patent number: 6212900Abstract: The evaporator and the condenser are disposed in a duct. First bypass passage is disposed at the side of the condenser and first air mixing damper rotates to control air bypassing amount. Further second bypass passage is formed at the side of the evaporator and second mixing damper rotates to control air bypassing amount. Cooling rate at the evaporator and heating rate at the condenser are varied so that air adjusted in proper temperature is generated and discharged from each outlets into a room. An outside heat exchanger is disposed the outside of the duct. Refrigerant flow is randomly switched among the outside heat exchanger, the evaporator and the condenser so that cooling, heating, dehumidifying, dehumidified-heating and defrosting operations are performed.Type: GrantFiled: May 26, 1999Date of Patent: April 10, 2001Assignee: Nippendenso Co., Ltd.Inventors: Kunio Iritani, Shigeo Numazawa, Kenichi Fujiwara, Yasushi Yamanaka, Akira Isaji, Nobunao Suzuki
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Patent number: 6044653Abstract: An automotive air conditioner which conditions air making use of radiation of heat of a condenser and absorption of heat of an evaporator effectively. The evaporator 207 and the condenser 203 are disposed in a duct 100. A bypass passageway 150 is provided sidewardly of the condenser 203 in the duct 100, and a flow rate of air bypassing the condenser 203 is controlled by pivotal motion of an air mixing damper 154. Another bypass passage is provided sidewardly of the evaporator 207 in the duct 100, and a flow rate of air bypassing the evaporator 207 is controlled by pivotal motion of a bypass damper 159. Air is conditioned to an optimum blown out air temperature by varying the cooling rate at the evaporator 207 and the heating rate at the condenser 203 and is blown out to a room of an automobile from spit holes 141, 142 and 143.Type: GrantFiled: January 8, 1998Date of Patent: April 4, 2000Assignee: Nippondenso Co., Ltd.Inventors: Kunio Iritani, Shigeo Numazawa, Kenichi Fujiwara, Yasushi Yamanaka, Akira Isaji, Nobunao Suzuki
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Patent number: 5983652Abstract: The evaporator and the condenser are disposed in a duct. First bypass passage is disposed at the side of the condenser and first air mixing damper rotates to control air bypassing amount. Further second bypass passage is formed at the side of the evaporator and second mixing damper rotates to control air bypassing amount. Cooling rate at the evaporator and heating rate at the condenser are varied so that air adjusted in proper temperature is generated and discharged from each outlets into a room. An outside heat exchanger is disposed the outside of the duct. Refrigerant flow is randomly switched among the outside heat exchanger, the evaporator and the condenser so that cooling, heating, dehumidifying, dehumidified-heating and defrosting operations are performed.Type: GrantFiled: January 7, 1997Date of Patent: November 16, 1999Assignee: Denso CorporationInventors: Kunio Iritani, Shigeo Numazawa, Kenichi Fujiwara, Yasushi Yamanaka, Akira Isaji, Nobunao Suzuki, Takahisa Suzuki, Keita Honda, Ryoichi Sanada
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Patent number: 5782102Abstract: An automotive air conditioner which conditions air making use of radiation of heat of a condenser and absorption of heat of an evaporator effectively. The evaporator 207 and the condenser 203 are disposed in a duct 100. A bypass passageway 150 is provided sidewardly of the condenser 203 in the duct 100, and a flow rate of air bypassing the condenser 203 is controlled by pivotal motion of an air mixing damper 154. Another bypass passage is provided sidewardly of the evaporator 207 in the duct 100, and a flow rate of air bypassing the evaporator 207 is controlled by pivotal motion of a bypass damper 159. Air is conditioned to an optimum blown out air temperature by varying the cooling rate at the evaporator 207 and the heating rate at the condenser 203 and is blown out to a room of an automobile from spit holes 141, 142 and 143.Type: GrantFiled: January 9, 1997Date of Patent: July 21, 1998Assignee: Nippondenso Co., Ltd.Inventors: Kunio Iritani, Shigeo Numazawa, Kenichi Fujiwara, Yasushi Yamanaka, Akira Isaji, Nobunao Suzuki
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Patent number: 5685162Abstract: The evaporator and the condenser are disposed in a duct. First bypass passage is disposed at the side of the condenser and first air mixing damper rotates to control air bypassing amount. Further second bypass passage is formed at the side of the evaporator and second mixing damper rotates to control air bypassing amount. Cooling rate at the evaporator and heating rate at the condenser are varied so that air adjusted in proper temperature is generated and discharged from each outlets into a room. An outside heat exchanger is disposed the outside of the duct. Refrigerant flow is randomly switched among the outside heat exchanger, the evaporator and the condenser so that cooling, heating, dehumidifying, dehumidified-heating and defrosting operations are performed.Type: GrantFiled: November 30, 1994Date of Patent: November 11, 1997Assignee: Nippondenso Co., Ltd.Inventors: Kunio Iritani, Shigeo Numazawa, Kenichi Fujiwara, Yasushi Yamanaka, Akira Isaji, Nobunao Suzuki, Takahisa Suzuki, Keita Honda, Ryoichi Sanada
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Patent number: 5642627Abstract: An automotive air conditioner which conditions air making use of radiation of heat of a condenser and absorption of heat of an evaporator effectively. The evaporator 207 and the condenser 203 are disposed in a duct 100. A bypass passageway 150 is provided sidewardly of the condenser 203 in the duct 100, and a flow rate of air bypassing the condenser 203 is controlled by pivotal motion of an air mixing damper 154. Another bypass passage is provided sidewardly of the evaporator 207 in the duct 100, and a flow rate of air bypassing the evaporator 207 is controlled by pivotal motion of a bypass damper 159. Air is conditioned to an optimum blown out air temperature by varying the cooling rate at the evaporator 207 and the heating rate at the condenser 203 and is blown out to a room of an automobile from spit holes 141, 142 and 143.Type: GrantFiled: November 1, 1994Date of Patent: July 1, 1997Assignee: Nippondenso Co., Ltd.Inventors: Kunio Iritani, Shigeo Numazawa, Kenichi Fujiwara, Yasushi Yamanaka, Akira Isaji, Nobunao Suzuki
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Patent number: 5605051Abstract: An automotive air conditioner which conditions air making use of radiation of heat of a condenser and absorption of heat of an evaporator effectively. The evaporator 207 and the condenser 203 are disposed in a duct 100. An condenser disposed in a duct has a heat exchanging section in which heat exchange is performed between refrigerant and draft air. The heat exchanging section is divided into an upper stream area portion, a middle stream area portion and a lower stream area portion, and a temperature sensitive tube of a subcooling control valve is held in contact with a refrigerant passageway which interconnects the middle and lower stream area portions. The subcooling control valve adjusts the opening of a throttle portion thereof so that the subcooling degree on the upstream of the lower stream area portion where the temperature sensitive tube contacts may be a predetermined value (2.degree. to 10.degree. C.).Type: GrantFiled: November 30, 1994Date of Patent: February 25, 1997Assignee: Nippondenso Co., Ltd.Inventors: Kunio Iritani, Shigeo Numazawa, Kenichi Fujiwara, Yasushi Yamanaka, Akira Isaji, Takahisa Suzuki, Ryoichi Sanada
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System for controlling the temperature of the air in a cabin for an engine-electric motor hybrid car
Patent number: 5497941Abstract: A vehicle is provided with both an electric motor and an internal combustion engine for operating the vehicle. The vehicle is further provided with a duct for discharging air into a cabin of the vehicle for controlling the temperature of the air as discharged. A heater core is arranged in the duct for heating the air passing through the duct. A sensor 9 is provided for detection of the temperature of the cooling water of the engine. When the vehicle is operated by the electric motor, the heat taken from the engine cooling water is supplied to the heat exchanger for heating the air passing through the duct when the temperature of the engine cooling water is higher than a predetermined value.Type: GrantFiled: February 2, 1994Date of Patent: March 12, 1996Assignee: Nippondenso Co., Ltd.Inventors: Shigeo Numazawa, Takahisa Suzuki -
Patent number: 5408841Abstract: A compressor is prevented from the problem of seizure at start-up even when return of lubricant to the compressor is delayed. In such a refrigerant cycle, a bypass passage bypasses an expansion member and an evaporator. The bypass passage opens for a predetermined time when the compressor starts. The predetermined time is dependent upon external temperature, the compressor speed, compressor capacity, etc.Type: GrantFiled: March 9, 1994Date of Patent: April 25, 1995Assignee: Nippondenso Co., Ltd.Inventors: Takashi Fujiwara, Kiyoshi Usami, Yasuyuki Nishi, Shigeo Numazawa, Hiroshi Kishita
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Patent number: 5390507Abstract: A refrigerant evaporator for a refrigeration cycle provided with a heat exchanging unit, comprising a passageway to be cooled and a cooling passageway, and an evaporating unit for cooling the air, wherein a part of the inflowing refrigerant is divided, passed through a throttle to be reduced in pressure, and then passed through the cooling passageway of the heat exchanging unit, the inflowing refrigerant passing through the passageway to be cooled is cooled and completely changed to the liquid state and then passed into the evaporating unit, whereby the refrigerant is uniformly distributed to a plurality of refrigerant passageways of the evaporating unit.Type: GrantFiled: September 16, 1993Date of Patent: February 21, 1995Assignee: Nippondenso Co., Ltd.Inventors: Masahiro Shimoya, Shigeo Numazawa, Yoshiyuki Yamauchi, Etuo Hasegawa, Toshio Ohara, Keiichi Yoshii