Patents by Inventor Tetsuo Maeda
Tetsuo Maeda 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: 20110257822Abstract: To provide an engine controller of a hybrid vehicle that can perform a forced driving operation of an engine by performing the same inspection procedure as that of a vehicle using only an engine as a drive source even in the hybrid vehicle. The engine controller includes an operation control unit (ECM) that performs forced driving control of the engine to maintain an operation in a predetermined state suitable for an inspection if a determination that the inspection of the engine by a forced driving operation is requested is made, and an operation state determination unit (EVCM) that determines whether the cold start condition is satisfied or unsatisfied based on information containing at least with or without change from the disconnected state to the connected state of the battery. If the cold start condition is satisfied, the forced driving control of the engine is performed by the operation control unit.Type: ApplicationFiled: October 12, 2010Publication date: October 20, 2011Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Takahiro YOSHIMURA, Tetsuo MAEDA, Takehisa FUKUDA, Takeshi KAWAKAMI, Toshio OTSUKA
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Patent number: 8018702Abstract: The on-vehicle electronic control device includes a main power supply circuit fed with power from an on-vehicle battery through an output contact of a power supply relay and a main power supply terminal of a connector to supply a stabilized control voltage to a microprocessor. When contact failure occurs in the main power supply terminal, the main power supply circuit is fed with bypass power from the output contact through a first electrical load and a commutation diode to perform the one of the report of the abnormality and the storage of the abnormality occurrence history information. A bypass power fed state is detected when an input voltage to the main power supply circuit is lower than a power supply voltage of the on-vehicle battery.Type: GrantFiled: November 7, 2008Date of Patent: September 13, 2011Assignee: Mitsubishi Electric CorporationInventors: Tetsuo Maeda, Masaharu Yuhara, Masahide Fujita, Michihiro Takata, Takayuki Yano, Daisuke Yase
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Patent number: 7963280Abstract: There has been a problem that a projected part of a rear part of a pellet gets stuck with an end side of an attachment wall and rotation is interrupted when a rotary clip moves from a hit pin concave to an end side (i.e., attachment wall) of a magazine main body if the rear end of a pellet in a bore projects from a bore. In order to resolve the problem, there is proposed a magazine main body 1 and a magazine main body 1 having a rotary clip 2 rotatably attached to a rotary clip attachment part 3 of a magazine main body 1 characterized in that a clip opposing wall surface 33 of an attachment wall 34 of a clip opposing wall surface 33 gradually moves away from a cylindrical end surface of opposing rotary clip 2 towards an end side 31 of an attachment wall 34 within a range 35 of a rotational opposing surface positioned between a hit pin concave 32 and a side surface part 10 in the rotational direction of rotary clip 2.Type: GrantFiled: October 17, 2008Date of Patent: June 21, 2011Assignee: Maruzen Company LimitedInventor: Tetsuo Maeda
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Patent number: 7950381Abstract: A magazine has a magazine body provided with a rotary clip, and the magazine body comprises an ejector member capable of movement, an ejector elastic member provided on the ejector member and being capable of expansion and contraction, and an engagement indent section capable of being engaged with a magazine catch at the time of loading the magazine into the air gun body, and the air gun body has a magazine ejector structure with the magazine catch that is urged by a catch elastic member to the magazine holding section and capable of engaging with the engagement indent section of the magazine, and a stopper that is capable of pressing part of the ejector member.Type: GrantFiled: February 14, 2008Date of Patent: May 31, 2011Assignee: Maruzen Company LimitedInventor: Tetsuo Maeda
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Patent number: 7950382Abstract: An air gun includes a retainer pivotably connected inside the air gun and having a bullet abutment part that pivots into and out of a bullet-receiving chamber. The retainer is resiliently biased to pivot in a forward direction so that the bullet abutment part is urged into the bullet-receiving chamber. In a trigger rest position, a hollow inner barrel prevents a bullet and the bullet abutment part from entering into the bullet-receiving chamber. Upon pulling the trigger, the inner barrel moves in a forward direction to permit the bullet and the bullet abutment part to enter the bullet-receiving chamber where the bullet abutment part contacts and retains the bullet therein. Upon pulling the trigger further, the inner barrel moves in a rearward direction to capture the bullet therein while causing the retainer to pivot in the rearward direction to thereby move the bullet abutment part out of the bullet-receiving chamber.Type: GrantFiled: October 17, 2008Date of Patent: May 31, 2011Assignee: Maruzen Company LimitedInventor: Tetsuo Maeda
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Publication number: 20110048395Abstract: A bolt has a cylindrical fit receiving portion. When the bolt slides forward, the rear part of a valve body enters the fit receiving portion. At a closed end opposed to its opening behind the fit receiving portion, a cylindrical body is provided. The cylindrical body lets the interior of the bolt and the exterior of the bolt communicate with each other. The shank of an opening/closing body is slidably placed in the cylindrical body. This opening/closing body has an lid portion at the end of the shank on the fit receiving portion side and a coming-off preventing portion at the outside end of the shank. An opening/closing body spring is placed between the closed end of the bolt and the lid portion and pushes the lid portion toward the fit receiving portion.Type: ApplicationFiled: June 10, 2010Publication date: March 3, 2011Inventor: Tetsuo Maeda
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Publication number: 20100326414Abstract: A bullet feed portion reciprocates and is positioned in a firing position where a bullet housing chamber is opposed to a bullet feed port, and in a non-firing position where the bullet feed port is closed. A gas flow path guides compressed gas to the bullet feed port in an inner barrel. A valve is biased to close the gas flow path. A firing action mechanism has a movable body that can be freely reciprocated along the inner barrel. The firing action mechanism moves the bullet feed portion to a firing position and moves the valve to a non-biasing direction. A power transmission unit transforms motor force into the locomotion of a movable body. When a trigger is pulled, the motor moves the movable body toward the bullet feed port to feed a bullet into the bullet feed portion, and actuate the firing action mechanism.Type: ApplicationFiled: June 8, 2010Publication date: December 30, 2010Applicant: Maruzen Company LimitedInventor: Tetsuo Maeda
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Patent number: 7856969Abstract: In an air gun of the related art, even if it is attempted to independent and separately adjust a firing operation and a blowback operation, this type of independent adjustment is difficult. This problem is solved by an air gun for firing a bullet using compressed gas, and having a mechanism for performing blowback, wherein the blowback mechanism is provided with a firing air chamber 25a and a blowback air chamber 25b, being two cavities capable of being supplied with compressed gas from a compressed gas source A and being sealed to contain the compressed gas, inside a valve body 24, a firing valve 27 inside the firing air chamber 25a, a blowback valve 29 inside the blowback air chamber 25b, and two valves 27, 29 that are capable of actuation independent of each other by operation of a trigger.Type: GrantFiled: January 19, 2007Date of Patent: December 28, 2010Assignee: Maruzen Company LimitedInventors: Tetsuo Maeda, Yoshiyuki Maeda
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Publication number: 20100319668Abstract: A trigger sear is placed between a trigger and a bolt sear. The engagement between the bolt sear and a bolt is removed by pulling the trigger. The bolt makes reciprocating motion in the back and forth direction of the toy gun. While it reciprocates once, the bolt opens and closes a valve portion and fires off a bullet B. When the trigger is pulled, a stopper pawl and a driving pawl are engaged with a control plate having a ratchet gear structure. In conjunction with the reciprocating motion of the bolt, the driving pawl rotates and displaces the control plate in a forward direction. When the toy gun fires a predetermined number of bullets B, a sear bar is displaced. The sear bar moves the trigger sear and causes it to break away from the bolt sear.Type: ApplicationFiled: June 8, 2010Publication date: December 23, 2010Applicant: Maruzen Company LimitedInventor: Tetsuo Maeda
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Publication number: 20100263652Abstract: In an air gun of the related art, even if it is attempted to independent and separately adjust a firing operation and a blowback operation, this type of independent adjustment is difficult. This problem is solved by an air gun for firing a bullet using compressed gas, and having a mechanism for performing blowback, wherein the blowback mechanism is provided with a firing air chamber 25a and a blowback air chamber 25b, being two cavities capable of being supplied with compressed gas from a compressed gas source A and being sealed to contain the compressed gas, inside a valve body 24, a firing valve 27 inside the firing air chamber 25a, a blowback valve 29 inside the blowback air chamber 25b, and two valves 27, 29 that are capable of actuation independent of each other by operation of a trigger.Type: ApplicationFiled: January 19, 2007Publication date: October 21, 2010Applicant: Maruzen Company LimitedInventors: Tetsuo Maeda, Yoshiyuki Maeda
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Patent number: 7766000Abstract: The structure of air guns with a conventional blowback mechanism was complicated because they had a hammer, sear, trigger bar, bullet supply nozzle, bullet supply nozzle link, etc. These members operated every time when a bullet was shot resulting in the members being readily worn, with failure often occurring as well as problems with durability. In order to solve these problems, the valve body has a valve body air chamber sealed to contain the compressed gas supplied from the compressed gas source, and has a discharge valve which can move in a longitudinal direction. The discharge valve has a valve through hole that passes completely from the muzzle to the gun rear end direction, and a gas supply port that can open and close the valve body air chamber and valve through hole by the movement of the discharge valve in the longitudinal direction. Retreat of the inner barrel opens the gas supply port of the discharge valve to shoot a bullet and perform blowback.Type: GrantFiled: August 5, 2008Date of Patent: August 3, 2010Assignee: Maruzen Company LimitedInventor: Tetsuo Maeda
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Patent number: 7669588Abstract: A rotary clip rotation mechanism for an air gun, having a nail for engaging with a nail engagement section provided in the rotary clip and causing rotation of a rotary clip, comprises an L-shaped arm, capable of rotating about an arm shaft, with a muzzle side end opening section formed from a curved surface section; an arm elastic section provided at a position contacting the tip of the curved surface section of the L-shaped arm, a nail support arm provided so as to rotate on a gun rear end side of the L-shaped arm by means of a connecting elastic section, and a nail urged in the direction of the tip end by a nail elastic section provided on a tip of the nail support arm.Type: GrantFiled: February 14, 2008Date of Patent: March 2, 2010Assignee: Maruzen Company Ltd.Inventor: Tetsuo Maeda
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Publication number: 20100031944Abstract: The structure of air guns with a conventional blowback mechanism was complicated because they had a hammer, sear, trigger bar, bullet supply nozzle, bullet supply nozzle link, etc. These members operated every time when a bullet was shot resulting in the members being readily worn, with failure often occurring as well as problems with durability. In order to solve these problems, the valve body has a valve body air chamber sealed to contain the compressed gas supplied from the compressed gas source, and has a discharge valve which can move in a longitudinal direction. The discharge valve has a valve through hole that passes completely from the muzzle to the gun rear end direction, and a gas supply port that can open and close the valve body air chamber and valve through hole by the movement of the discharge valve in the longitudinal direction. Retreat of the inner barrel opens the gas supply port of the discharge valve to shoot a bullet and perform blowback.Type: ApplicationFiled: August 5, 2008Publication date: February 11, 2010Applicant: Maruzen Company LimitedInventor: Tetsuo Maeda
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Publication number: 20090316320Abstract: The on-vehicle electronic control device includes a main power supply circuit fed with power from an on-vehicle battery through an output contact of a power supply relay and a main power supply terminal of a connector to supply a stabilized control voltage to a microprocessor. When contact failure occurs in the main power supply terminal, the main power supply circuit is fed with bypass power from the output contact through a first electrical load and a commutation diode to perform the one of the report of the abnormality and the storage of the abnormality occurrence history information. A bypass power fed state is detected when an input voltage to the main power supply circuit is lower than a power supply voltage of the on-vehicle battery.Type: ApplicationFiled: November 7, 2008Publication date: December 24, 2009Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Tetsuo Maeda, Masaharu Yuhara, Masahide Fujita, Michihiro Takata, Takayuki Yano, Daisuke Yase
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Publication number: 20090235910Abstract: According to the present invention, by providing an extremely simple member such as a partition wall having a microscopic hole section, it is possible to reliably reduce the speed of a bullet to within a fixed speed, even a complicated decompression device such as a regulator is not provided. As a result, manufacturing time for the air gun is shortened, it is possible to lower manufacturing cost, and there is the effect of improving the manufacturing efficiency.Type: ApplicationFiled: October 17, 2008Publication date: September 24, 2009Applicant: Maruzen Company LimitedInventor: Tetsuo Maeda
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Publication number: 20090139506Abstract: In the related art, impact on an inner barrel is strong, and functions as resistance, and each member is likely to be damaged because the biasing force of the retainer spring is strong. In order to solve the problems, there is provided an air gun in which the backward movement of an inner barrel 10 causes high-pressure gas to be injected into the inner barrel from a gas chamber 15, and a bullet W is projected after the inner barrel 10 has advanced towards the muzzle, the retainer 7 which retains a bullet W supplied from a magazine 16 can rotate in a direction towards the rear of the gun from the position where a bullet W is held, about the retainer rotational axis 70, a bullet abutment part 73 abuts on and holds the bullet W, and retention of a bullet W is released by the backward rotation with the movement of the inner barrel 10 towards the rear side of the gun.Type: ApplicationFiled: October 17, 2008Publication date: June 4, 2009Applicant: Maruzen Company LimitedInventor: Tetsuo Maeda
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Publication number: 20090139507Abstract: There has been a problem that a projected part of a rear part of a pellet gets stuck with an end side of an attachment wall and rotation is interrupted when a rotary clip moves from a hit pin concave to an end side (i.e., attachment wall) of a magazine main body if the rear end of a pellet in a bore projects from a bore. In order to resolve the problem, there is proposed a magazine main body 1 and a magazine main body 1 having a rotary clip 2 rotatably attached to a rotary clip attachment part 3 of a magazine main body 1 characterized in that a clip opposing wall surface 33 of an attachment wall 34 of a clip opposing wall surface 33 gradually moves away from a cylindrical end surface of opposing rotary clip 2 towards an end side 31 of an attachment wall 34 within a range 35 of a rotational opposing surface positioned between a hit pin concave 32 and a side surface part 10 in the rotational direction of rotary clip 2.Type: ApplicationFiled: October 17, 2008Publication date: June 4, 2009Applicant: Maruzen Company LimitedInventor: Tetsuo Maeda
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Publication number: 20090056690Abstract: A magazine has a magazine body provided with a rotary clip, and the magazine body comprises an ejector member capable of movement, an ejector elastic member provided on the ejector member and being capable of expansion and contraction, and an engagement indent section capable of being engaged with a magazine catch at the time of loading the magazine into the air gun body, and the air gun body has a magazine ejector structure with the magazine catch that is urged by a catch elastic member to the magazine holding section and capable of engaging with the engagement indent section of the magazine, and a stopper that is capable of pressing part of the ejector member.Type: ApplicationFiled: February 14, 2008Publication date: March 5, 2009Applicant: Maruzen Company LimitedInventor: Tetsuo Maeda
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Publication number: 20090056692Abstract: A rotary clip rotation mechanism for an air gun, having a nail for engaging with a nail engagement section provided in the rotary clip and causing rotation of a rotary clip, comprises an L-shaped arm, capable of rotating about an arm shaft, with a muzzle side end opening section formed from a curved surface section; an arm elastic section provided at a position contacting the tip of the curved surface section of the L-shaped arm, a nail support arm provided so as to rotate on a gun rear end side of the L-shaped arm by means of a connecting elastic section, and a nail urged in the direction of the tip end by a nail elastic section provided on a tip of the nail support arm.Type: ApplicationFiled: February 14, 2008Publication date: March 5, 2009Applicant: Maruzen Company LimitedInventor: Tetsuo Maeda
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Publication number: 20080232361Abstract: According to one embodiment, an IP broadcast system includes a transmitting side and a receiving side connected to the transmitting side through a broadcast network on an IP network. The transmitting side includes a multiplexer which generates a standardized multiplex frame including at least a header field and an information field by multiplexing a plurality of RTP packets. The receiving side includes a buffer which temporarily holds the multiplex frame from the broadcast network and a program reproducer which retrieves and analyzes the multiplex frame from the buffer, extracts a reproduction clock shared by a plurality of programs, demultiplexes a plurality of TSs for each program from the multiplex frame, and based on the reproduction clock, reproduces the programs from each TS.Type: ApplicationFiled: March 14, 2008Publication date: September 25, 2008Inventors: Kenji Kimiyama, Yoshiro Osaki, Naoko Satoh, Tetsuo Maeda