Patents by Inventor Yoshiaki Hironaka
Yoshiaki Hironaka 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: 6802284Abstract: A fuel injection device mounted on a main body of an air-fuel mixture generating device including an electromagnetic driving-type fuel injection valve for injecting, at predetermined times, fuel into an air-intake passageway of an intake system of an internal combustion engine, and a collision plate operationally coupled to the fuel injection valve adapted to be disposed in the air-intake passageway for enabling the injected fuel to collide therewith.Type: GrantFiled: April 11, 2002Date of Patent: October 12, 2004Assignees: Oppama Industry Co., Ltd., Kioritz CorporationInventors: Yoshiaki Hironaka, Michiyasu Kuwano, Masao Iwata, Kiyoshige Enomoto
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Patent number: 6742994Abstract: A reciprocating pump which is capable of detecting abnormalities in the sucking and discharging of fluid, such as the exhaustion of oil or the clogging of oil on the discharge side, by making use of detecting means which is inexpensive and relatively simple in structure and which can be operated without being detrimentally influenced by the bubbles that may be included in the fluid, while making it possible to minimize the noise generated by external vibrations. In this reciprocating pump, where the sucking and discharging of fluid are effected by making use of a reciprocating member, malfunction-detecting means formed of a piezoelectric element is provided for detecting a pressure fluctuation on a discharge side of the pump, and the pressure fluctuation of fluid being delivered from an discharging port is transmitted via a rigid pressure-receiving member to the piezoelectric element.Type: GrantFiled: May 9, 2002Date of Patent: June 1, 2004Assignee: Kioritz CorporationInventors: Yoshiaki Hironaka, Tadashige Kondo, Kiyoshige Enomoto
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Patent number: 6574085Abstract: A power supply apparatus for electrostatic charging sprayed liquids from a spraying apparatus and method for same, the apparatus including a rotor having a magnet and magnetic poles, a booster coil assembly facing the rotor, for inducing high voltage AC pulses during the rotation of the rotor, and a rectifier for rectifying the high voltage AC pulses induced by the booster coil assembly to high voltage DC pulses and for supplying the high voltage DC pulses to a charging electrode. The power supply apparatus provides a compact and lightweight power generator system, thus eliminating cumbersome operations such as replacement or recharging of a large battery. In addition, a lighter weight and simplified operation reduces the burden on users and facilitates more efficient spraying.Type: GrantFiled: September 6, 2000Date of Patent: June 3, 2003Assignees: Oppama Industry Co., Ltd., Kioritz CorporationInventors: Yoshiaki Hironaka, Masao Iwata, Kiyoshige Enomoto
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Patent number: 6517330Abstract: A reciprocating pump includes a chamber, a reciprocating member arranged to induct a fluid into the chamber and discharge the fluid from the chamber to a delivery side of the pump, and a piezoelectric element attached to the pump and arranged to detect pressure fluctuations on the delivery side of the pump so as to sense any abnormality in the inducting and discharging of fluid.Type: GrantFiled: May 7, 2001Date of Patent: February 11, 2003Assignee: Kioritz CorporationInventors: Yoshiaki Hironaka, Tadashige Kondo, Kiyoshige Enomoto
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Publication number: 20020168267Abstract: A reciprocating pump which is capable of detecting abnormalities in the sucking and discharging of fluid, such as the exhaustion of oil or the clogging of oil on the discharge side, by making use of detecting means which is inexpensive and relatively simple in structure and which can be operated without being detrimentally influenced by the bubbles that may be included in the fluid, while making it possible to minimize the noise generated by external vibrations. In this reciprocating pump, where the sucking and discharging of fluid are effected by making use of a reciprocating member, malfunction-detecting means formed of a piezoelectric element is provided for detecting a pressure fluctuation on a discharge side of the pump, and the pressure fluctuation of fluid being delivered from an discharging port is transmitted via a rigid pressure-receiving member to the piezoelectric element.Type: ApplicationFiled: May 9, 2002Publication date: November 14, 2002Inventors: Yoshiaki Hironaka, Tadashige Kondo, Kiyoshige Enomoto
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Publication number: 20020148419Abstract: A fuel injection device mounted on a main body of an air-fuel mixture generating device including an electromagnetic driving-type fuel injection valve for injecting, at predetermined times, fuel into an air-intake passageway of an intake system of an internal combustion engine, and a collision plate operationally coupled to the fuel injection valve adapted to be disposed in the air-intake passageway for enabling the injected fuel to collide therewith.Type: ApplicationFiled: April 11, 2002Publication date: October 17, 2002Inventors: Yoshiaki Hironaka, Michiyasu Kuwano, Masao Iwata, Kiyoshige Enomoto
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Patent number: 6374782Abstract: An air-fuel mixture generating device includes a main body equipped with a diaphragm-type fuel pump, a fuel injection valve attached to the main body, and a manual fuel pump attached to the main body for filling a fuel passageway with fuel when the diaphragm-type fuel pump is not operating. The manual fuel pump has an inlet port which communicates with the fuel passageway and a pressure-adjusting valve disposed at the inlet port of the manual fuel pump, thereby enabling it to act not only as an intake valve when the manual fuel pump is operated but also as a relief valve for allowing the fuel inside the fuel passageway to escape into a pump chamber of the manual fuel pump when the pressure of fuel inside the fuel passageway exceeds a predetermined pressure.Type: GrantFiled: January 12, 2001Date of Patent: April 23, 2002Assignee: Kioritz CorporationInventors: Takeshi Ishikawa, Yukio Sakaguchi, Yoshiaki Hironaka, Kiyoshige Enomoto
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Patent number: 6354522Abstract: In an electrostatic sprayer, a pulsating voltage developed using a battery or a generator as a power supply is stepped up using a step-up transformer. A resultant high-voltage pulse is rectified and applied to an electrostatic electrode. A spray jetted from a spray nozzle is thus electrified. Herein, the step-up transformer is located near the spray nozzle. Owing to this structure, a high voltage produced by the step-up transformer can be applied to the electrostatic electrode with a loss minimized.Type: GrantFiled: April 17, 2001Date of Patent: March 12, 2002Assignees: Oppama Industry Co., Ltd., Kioritz CorporationInventors: Masao Iwata, Kiyoshige Enomoto, Yoshiaki Hironaka, Shunsuke Nakamura
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Publication number: 20010043873Abstract: A reciprocating pump includes a chamber, a reciprocating member arranged to induct a fluid into the chamber and discharge the fluid from the chamber to a delivery side of the pump, and a piezoelectric element attached to the pump and arranged to detect pressure fluctuations on the delivery side of the pump so as to sense any abnormality in the inducting and discharging of fluid.Type: ApplicationFiled: May 7, 2001Publication date: November 22, 2001Inventors: Yoshiaki Hironaka, Tadashige Kondo, Kiyoshige Enomoto
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Publication number: 20010032897Abstract: In an electrostatic sprayer, a pulsating voltage developed using a battery or a generator as a power supply is stepped up using a step-up transformer. A resultant high-voltage pulse is rectified and applied to an electrostatic electrode. A spray jetted from a spray nozzle is thus electrified. Herein, the step-up transformer is located near the spray nozzle. Owing to this structure, a high voltage produced by the step-up transformer can be applied to the electrostatic electrode with a loss minimized.Type: ApplicationFiled: April 17, 2001Publication date: October 25, 2001Inventors: Masao Iwata, Kiyoshige Enomoto, Yoshiaki Hironaka, Shunsuke Nakamura
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Publication number: 20010007249Abstract: An air-fuel mixture generating device includes a main body equipped with a diaphragm-type fuel pump, a fuel injection valve attached to the main body, and a manual fuel pump attached to the main body for filling a fuel passageway with fuel when the diaphragm-type fuel pump is not operating. The manual fuel pump has an inlet port which communicates with the fuel passageway and a pressure-adjusting valve disposed at the inlet port of the manual fuel pump, thereby enabling it to act not only as an intake valve when the manual fuel pump is operated but also as a relief valve for allowing the fuel inside the fuel passageway to escape into a pump chamber of the manual fuel pump when the pressure of fuel inside the fuel passageway exceeds a predetermined pressure.Type: ApplicationFiled: January 12, 2001Publication date: July 12, 2001Applicant: KIORITZ CORPORATIONInventors: Takeshi Ishikawa, Yukio Sakaguchi, Yoshiaki Hironaka, Kiyoshige Enomoto
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Patent number: 5901687Abstract: A cassette-type fuel tank can be removably mounted on a working machine equipped with an internal combustion engine. The fuel tank has an opening to which different closing caps can be selectively and removably attached. One cap is for use in transporting the fuel tank separate from the working machine, and another is for use when the fuel tank is attached to the working machine. The working machine has a tank-mounting means for removably holding the fuel tank below the internal combustion engine.Type: GrantFiled: March 18, 1998Date of Patent: May 11, 1999Assignee: Kioritz CorporationInventors: Takanobu Tasaki, Yoshiaki Hironaka, Yoshihiro Tanaka
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Patent number: 5211140Abstract: A decompressor for an internal combustion engine including a mounting hole in which a decompression valve for opening and closing a pressure relief bore opening into a combustion chamber within a cylinder of the engine, is disposed, and also including a through-hole which is obliquely and rectilinearly formed through a portion of a wall of the cylinder, and through which an outer open end portion of the mounting hole is able to communicate with a scavenging passage of the engine.Type: GrantFiled: May 27, 1992Date of Patent: May 18, 1993Assignee: Kioritz CorporationInventors: Yoshiaki Hironaka, Susumu Miyashita, Tadashige Kondo
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Patent number: 5116287Abstract: A decompressor for an internal combustion engine having a decompressor valve mounted on a cylinder and a decompressor actuating lever slidably supported by guide members. A proximal end of the decompressor actuating lever is connected to a driving pawl member and a distal end of the same is closely disposed to and cooperated with a valve rod of the decompressor valve.Type: GrantFiled: January 15, 1991Date of Patent: May 26, 1992Assignee: Kioritz CorporationInventors: Yoshiaki Hironaka, Yoshikiyo Kamata
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Patent number: 5110468Abstract: A fresh water generator includes a primary pump for pumping up water to be treated, a secondary pump for pressure sending, and a filtering device for purifying the water to be treated which is sent from the secondary pump by pressure. The fresh water generator further includes interlocking devices for interlocking clutch means of transmission devices and an operation lever of a three-way valve. The operation lever can be switched to one position from the other position and vice versa. The one position is a position in which the clutch means are actuated, thereby transmitting drive power from an internal combustion engine to the primary pump. The other position is a position in which the clutch means are relaxed, thereby blocking transmission of the drive power to the primary pump.Type: GrantFiled: January 15, 1991Date of Patent: May 5, 1992Assignee: Kioritz CorporationInventors: Susumu Miyashita, Tadashi Ishimura, Yoshiaki Hironaka
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Patent number: 5063890Abstract: A 2-cycle internal combustion engine, which operates with a gas fuel such as a liquefied gas, has a glow plug which is capable of igniting the air-fuel mixture introduced into the combustion chamber.Type: GrantFiled: June 1, 1990Date of Patent: November 12, 1991Assignee: Kioritz CorporationInventor: Yoshiaki Hironaka
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Patent number: 4953526Abstract: A portable work machine equipped with an internal combustion engine. A starting pressure reducing device is mounted on a cylinder of the engine for reducing, at starting of the engine, pressure within a combustion chamber defined in the cylinder. A hole is formed at a portion of an engine cover which is within reach of a finger of a hand holding a handle, and is closed by a flexible cap. An actuating portion of the starting pressure reducing device is disposed inside the cap.Type: GrantFiled: September 11, 1989Date of Patent: September 4, 1990Assignee: Kioritz CorporationInventors: Yoshiaki Hironaka, Tatsuhiko Matsubayashi, Yoshikiyo Kamata, Takanobu Tasaki
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Patent number: 4944711Abstract: An extendable/retractable operational sleeve is composed of a main sleeve portion and a movable sleeve portion movable in the axial direction in a telescopic manner relative to the main sleeve portion. A stop member for limiting outward separation of the movable sleeve portion of the operational sleeve is integrally formed with a bearing for supporting a main transmission shaft.Type: GrantFiled: February 22, 1989Date of Patent: July 31, 1990Assignee: Kioritz CorporationInventors: Yoshiaki Hironaka, Isao Matsumoto
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Patent number: 4932364Abstract: An internal combustion engine provided with an air cleaner and a muffler respectively on both sides of the crankshaft of the engine body and with a fuel tank below them wherein the air cleaner and the muffler are formed to be vertically extended respectively at the lower ends thereof along both sides of the engine body, the fuel tank is formed to be substantially like T made integrally of a barrel part and a head part inflated out on both sides in front of the barrel part, the barrel part is fitted in a space made by the air cleaner and the muffler below the engine body and both side parts of the head are arranged respectively in front of the lower parts of the air cleaner and the muffler.Type: GrantFiled: September 26, 1989Date of Patent: June 12, 1990Assignee: Kioritz CorporationInventors: Yoshiaki Hironaka, Yoshikiyo Kamata, Yukio Sakaguchi
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Patent number: 4714447Abstract: A power train of a mowing machine including a joint member of a substantially cylindrical configuration rotatably journalled by a bearing mounted to an inner surface of an operating rod through a vibration damping member, a flexible shaft connected at one end thereof to an output shaft of a prime mover and at an opposite end thereof to the joint member, and a rigid transmission shaft connected at one end thereof to the joint member and extending through the operating rod. The rigid transmission shaft is connected at an opposite end thereof to a cutter blade device connected to a forward end of the rigid transmission shaft.Type: GrantFiled: April 8, 1986Date of Patent: December 22, 1987Assignee: Kioritz CorporationInventor: Yoshiaki Hironaka