Patents by Inventor Katsuhiko Makino
Katsuhiko Makino 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: 20150076897Abstract: In a method of controlling a brake system, a basic control to operate an electric vacuum pump is performed when a booster internal pressure, i.e., an actual pressure of a negative pressure chamber of a brake booster, is larger than a target booster internal pressure, i.e., a target pressure in the negative pressure chamber. The electric vacuum pump is not operated under a predetermined condition even when the booster internal pressure is larger than the target booster internal pressure.Type: ApplicationFiled: September 2, 2014Publication date: March 19, 2015Inventors: Minoru AKITA, Katsuhiko MAKINO, Yuzuru ITO
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Patent number: 8931460Abstract: A fuel vapor recovery system has a fuel tank, an adsorbent canister, a separator capable of separating fuel vapor from air, and a negative pressure supplier applying negative pressure to the adsorbent canister in order to remove the fuel vapor from the adsorbent canister. The separator has a housing and a separation membrane. The separation membrane divides an inner space of the housing into a receiving chamber and a permeation chamber and is configured to allow the fuel vapor to pass therethrough. The separator is connected with the fuel tank such that the fuel tank is fluidly connected with the receiving chamber. The negative pressure supplier is fluidly connected with the adsorbent canister via the permeation chamber. When the negative pressure supplier applies negative pressure to the adsorbent canister, purge gas flows from the adsorbent canister into the fuel tank via the permeation chamber.Type: GrantFiled: September 24, 2011Date of Patent: January 13, 2015Assignee: Aisan Kogyo Kabushiki KaishaInventors: Katsuhiko Makino, Junya Kimoto
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Patent number: 8920545Abstract: A fuel vapor processing apparatus may include a latent heat storage material that releases latent heat during desorption of fuel vapor from an adsorption material.Type: GrantFiled: September 5, 2012Date of Patent: December 30, 2014Assignee: Aisan Kogyo Kabushiki KaishaInventor: Katsuhiko Makino
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Patent number: 8900350Abstract: One aspect of the present teachings includes a separation membrane arranged in a hollow case. A particular component concentration chamber and a particular component dilution chamber are arranged in series in the hollow case. The particular component concentration chamber is capable of increasing concentration of the particular component by allowing permeation of the particular gas through the separation membrane. The particular component dilution chamber is capable of increasing concentration of the particular component by not allowing permeation of the particular gas through the separation membrane. The particular component concentration chamber and the particular component dilution chamber are configured such that only a gas containing the particular component and permeated through the separation membrane or only a gas containing the particular component not permeated through the separation membrane in one of the chambers disposed on an upstream side (i.e.Type: GrantFiled: January 17, 2013Date of Patent: December 2, 2014Assignee: Aisan Kogyo Kabushiki KaishaInventors: Masataka Suzuki, Takashi Suefuji, Akio Muraishi, Katsuhiko Makino, Toshiyuki Iwasaki, Takashi Mani
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Publication number: 20140248167Abstract: In an electric vacuum pump, a pump housing and a lower-end cover member respectively include positioning retainers respectively formed on outer peripheries of the pump housing and the lower-end cover member. A case includes positioning retainers each protruding inward from an inner peripheral surface of the case. The positioning retainers are in contact with the positioning protrusions, thereby positioning the pump housing and the lower-end cover member with respect to the case. The positioning protrusions are formed with screw holes.Type: ApplicationFiled: February 21, 2014Publication date: September 4, 2014Applicant: AISAN KOGYO KABUSHIKI KAISHAInventors: Atsushi SUGIMOTO, Katsuhiko MAKINO, Shota YAMANAKA
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Publication number: 20140183934Abstract: A brake system includes: a first passage connected to a negative pressure chamber of a brake booster; a second passage branching from the first passage; an electric vacuum pump in the second passage; a first check valve for preventing inflow of a fluid from the intake system to the negative pressure chamber through the second passage; and a second check valve for preventing inflow of a fluid from the intake system to the negative pressure chamber through the first passage and inflow of a fluid from the intake system and a discharge outlet of a pump part to a suction inlet in the pump through the first passage, wherein a filter is provided between a discharge outlet of the pump and the intake system.Type: ApplicationFiled: December 23, 2013Publication date: July 3, 2014Applicant: AISAN KOGYO KABUSHIKI KAISHAInventors: Shota YAMANAKA, Mamoru YOSHIOKA, Katsuhiko MAKINO
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Patent number: 8757132Abstract: A fuel vapor processor has a fuel tank configured to reserve fuel, a canister containing adsorbent capable of adsorbing fuel vapor vaporized in the fuel tank, a separator receiving a fuel vapor containing gas from the fuel tank, a regulator controlling the volume of the fuel vapor containing gas supplied to the separator, and a suction unit capable of removing the fuel vapor from the canister. The separator selectively passes the fuel vapor therethrough in order to divide the fuel vapor containing gas into a first gas mainly containing the fuel vapor and a second gas having a fuel vapor density lower than the first gas. The suction unit suctions the first gas from the separator in order to return the first gas into the fuel tank. The second gas is introduced into the canister or is released into the atmosphere.Type: GrantFiled: March 8, 2011Date of Patent: June 24, 2014Assignee: Aisan Kogyo Kabushiki KaishaInventor: Katsuhiko Makino
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Patent number: 8740169Abstract: This display screen turning apparatus includes a first rotation support portion formed to be horizontally rotatable with respect to a base and a second rotation support portion formed to be horizontally rotatable with respect to the base independently of the first rotation support portion, for horizontally rotating a display screen portion by rotating at least either the first rotation support portion or the second rotation support portion.Type: GrantFiled: September 3, 2009Date of Patent: June 3, 2014Assignee: Funai Electric Co., Ltd.Inventors: Kunio Sawai, Katsuhiko Makino
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Patent number: 8713994Abstract: A method for detecting leak from a fuel vapor treating apparatus defining a first area including a fuel tank and a second area including an adsorbent canister has hermetically closing the first area, measuring internal pressure of the first area, comparing an absolute value of differential pressure between the internal pressure of the first area and the atmospheric pressure with a predetermined value, measuring the internal pressure of the first area in a case that the absolute value is equal to or higher than the predetermined value in order to check for leaks from the first area based on changes in the internal pressure of the first area, fluidly communicating the first area with the second area in order to equilibrate internal pressures of the first area and the second area, hermetically closing the second area, and measuring the internal pressure of the second area in order to check for leaks from the second area based on changes in the internal pressure of the second area.Type: GrantFiled: June 15, 2011Date of Patent: May 6, 2014Assignee: Aisan Kogyo Kabushiki KaishaInventor: Katsuhiko Makino
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Publication number: 20140119962Abstract: A negative pressure supply unit includes an electric vacuum pump including a motor part and a pump part placed in a case, and a cover member closing the case and is configured to supply negative pressure generated by the pump or in an engine intake pipe to a negative pressure chamber of a brake booster. The cover member includes: a suction passage for sucking a fluid from the negative pressure chamber into the pump part; a discharge passage for discharging the fluid ejected from the pump part to pump outside; and a branch passage branching from the suction passage to connect to an engine intake system. A first check valve provided in the discharge passage permits a fluid to flow only in a discharge direction. A second check valve provided in the branch passage permits a fluid to flow from the suction passage to the intake system.Type: ApplicationFiled: October 25, 2013Publication date: May 1, 2014Applicant: Aisan Kogyo Kabushiki KaishaInventors: Atsushi SUGIMOTO, Katsuhiko MAKINO, Shota YAMANAKA
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Publication number: 20140119957Abstract: An electric vacuum pump includes: a motor part and a pump part placed in a case, and a cover member closing the case from a pump part side. The cover member includes: a suction port for sucking a fluid from pump outside into the pump part; a silencer part including a space part communicating with a discharge outlet of the pump part; and a discharge port for discharging a fluid ejected from the pump part to pump outside. The suction port has an end portion placed in sealingly contact with the pump part to hermetically communicate with a suction inlet of the pump part. The discharge port is formed with a throat part.Type: ApplicationFiled: October 25, 2013Publication date: May 1, 2014Applicant: AISAN KOGYO KABUSHIKI KAISHAInventors: Shota YAMANAKA, Katsuhiko MAKINO, Atsushi SUGIMOTO
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Publication number: 20140119951Abstract: A failure diagnosis apparatus of brake system includes a determination unit to determine functional normality of an electric vacuum pump based on a detection result of at least one of a booster internal pressure detection unit for detecting internal pressure of a negative pressure chamber of a booster and a current value detection unit for detecting an operating electric current value of the pump and a detection result of a pipe internal pressure detection unit for detecting internal pressure of a pipe communicated with a discharge port of the pump.Type: ApplicationFiled: October 21, 2013Publication date: May 1, 2014Applicant: AISAN KOGYO KABUSHIKI KAISHAInventors: Katsuhiko MAKINO, Atsushi SUGIMOTO, Shota YAMANAKA
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Patent number: 8683852Abstract: A leakage diagnosis device can determine whether or not leakage occurs from a fuel vapor processing apparatus by comparing a diagnosis criterion, such as a reference pressure set for diagnosing leakage, with an internal pressure of a process system of the fuel vapor processing apparatus during application of a negative or positive pressure to the process system. The diagnosis criterion has a device that can correct the diagnosis criterion based on a fuel vapor pressure within the process system.Type: GrantFiled: January 31, 2011Date of Patent: April 1, 2014Assignee: Aisan Kogyo Kabushiki KaishaInventor: Katsuhiko Makino
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Publication number: 20130284154Abstract: An evaporated fuel treating apparatus, comprising a passage allowing circulation of fluid inside, a tank port and a purge port at one end of the passage, and an atmospheric port at the other end of the passage, and provided with a plurality of adsorption chambers each filled with granular activated carbon or crushed activated carbon in the passage, and a support member set between a first adsorption chamber located closest to the atmospheric port in the plurality of adsorption chambers and a second adsorption chamber located on the tank port side of the first adsorption chamber in the plurality of adsorption chambers, to space the first and second adsorption chambers apart from each other, and at least a part of the support member can adsorb evaporated fuel components. With this configuration, evaporated fuel components escaping to the outside through the atmospheric port are reduced.Type: ApplicationFiled: April 22, 2013Publication date: October 31, 2013Applicant: AISAN KOGYO KABUSHIKI KAISHAInventor: Katsuhiko Makino
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Patent number: 8545610Abstract: An adsorbent canister has a housing defining an adsorption chamber therein, an adsorbent filled in the adsorption chamber, and a honeycomb core. The honeycomb core is made from a material having a higher thermal conductivity than the adsorbent, defines therein a plurality of cells passing through the honeycomb core and is disposed in the adsorption chamber. The adsorbent canister can further have a heater for heating the honeycomb core or the honeycomb core can be made from a material, which produce heat when current is applied.Type: GrantFiled: July 28, 2011Date of Patent: October 1, 2013Assignee: Aisan Kogyo Kabushiki KaishaInventors: Katsuhiko Makino, Nobutaka Teshima, Junya Kimoto, Masakazu Hasegawa, Shota Yamanaka
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Patent number: 8518164Abstract: An adsorbent canister has a housing defining an adsorption chamber therein, an adsorbent filled in the adsorption chamber, and a honeycomb core. The honeycomb core is made from a material having a higher thermal conductivity than the adsorbent, defines therein a plurality of cells passing through the honeycomb core and is disposed in the adsorption chamber. The adsorbent canister can further have a heater for heating the honeycomb core or the honeycomb core can be made from a material, which produce heat when current is applied.Type: GrantFiled: July 28, 2011Date of Patent: August 27, 2013Assignee: Aisan Kogyo Kabushiki KaishaInventors: Katsuhiko Makino, Nobutaka Teshima, Junya Kimoto, Masakazu Hasegawa, Shota Yamanaka
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Patent number: 8474439Abstract: A fuel vapor processor has a fuel tank, a canister, a recovery pipe, a fuel pump, a negative pressure generator, a pressure regulator, a fuel intake pipe and a fuel intake regulator. The vapor pipe leads the fuel vapor generated in the fuel tank into the canister for trapping the fuel vapor. The recovery pipe connects the fuel tank and the canister for recovering the fuel vapor trapped in the canister into the fuel tank. The fuel intake pipe directly connects the fuel pump provided in the fuel tank with the negative pressure generator for leading fuel to the negative pressure generator. The negative pressure generator generates negative pressure depending on an amount of fuel supplied to the negative pressure generator from the fuel pump. The fuel vapor trapped in the canister is recovered to the fuel tank through the recovery pipe due to the negative pressure. The pressure regulator is connected with the fuel pump for returning excess fuel discharged from the fuel pump into the fuel tank.Type: GrantFiled: May 3, 2010Date of Patent: July 2, 2013Assignee: Aisan Kogyo Kabushiki KaishaInventors: Katsuhiko Makino, Junya Kimoto, Masanobu Shinagawa, Takashi Mani, Masakazu Hasegawa
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Patent number: 8448629Abstract: A fuel vapor processing apparatus includes a device that can restrict or prevent flow of gas from a vapor passage into a canister during recovering of fuel vapor from the canister into a fuel tank.Type: GrantFiled: May 17, 2010Date of Patent: May 28, 2013Assignee: Aisan Kogyo Kabushiki KaishaInventors: Katsuhiko Makino, Junya Kimoto, Masanobu Shinagawa, Masaki Ikeya
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Publication number: 20130125755Abstract: One aspect of the present teachings includes a separation membrane arranged in a hollow case. A particular component concentration chamber and a particular component dilution chamber are arranged in series in the hollow case. The particular component concentration chamber is capable of increasing concentration of the particular component by allowing permeation of the particular gas through the separation membrane. The particular component dilution chamber is capable of increasing concentration of the particular component by not allowing permeation of the particular gas through the separation membrane. The particular component concentration chamber and the particular component dilution chamber are configured such that only a gas containing the particular component and permeated through the separation membrane or only a gas containing the particular component not permeated through the separation membrane in one of the chambers disposed on an upstream side (i.e.Type: ApplicationFiled: January 17, 2013Publication date: May 23, 2013Inventors: Masataka SUZUKI, Takashi SUEFUJI, Akio MURAISHI, Katsuhiko MAKINO, Toshiyuki IWASAKI, Takashi MANI
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Publication number: 20130055899Abstract: A fuel vapor processing apparatus may include a latent heat storage material that releases latent heat during desorption of fuel vapor from an adsorption material.Type: ApplicationFiled: September 5, 2012Publication date: March 7, 2013Applicant: AISAN KOGYO KABUSHIKI KAISHAInventor: Katsuhiko MAKINO