Patents by Inventor Yoshinari Fukada
Yoshinari Fukada 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: 10165662Abstract: Provided is an ion generator that sends out air ions generated by applying high voltage between a discharge electrode and a counter electrode, the ion generator including: an air discharge port provided in a housing of the ion generator to send ejected air toward a region between the discharge electrode and the counter electrode; and an opening portion configured to discharge the generated air ions by the ejected air, in which the counter electrode is positioned on an upstream side of the flow of the ejected air with respect to the discharge electrode.Type: GrantFiled: November 11, 2014Date of Patent: December 25, 2018Assignee: Koganei CorporationInventors: Yoshinari Fukada, Kazuyoshi Onezawa, Yuji Takahashi
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Patent number: 9674934Abstract: Provided is an ion generator that has a potential sensor provided integrally inside the main body of the ion generator, and that can measure, with the potential sensor, an electric field that reaches the potential sensor from a member from which static charge is to be eliminated, without being affected by an electric field between a discharge electrode and an opposing electrode. This ion generator comprises a discharge electrode, an opposing electrode, and a main body part including these electrodes, the ion generator sending out, toward a member from which static charge is to be eliminated, air ions generated by applying a high voltage between the electrodes.Type: GrantFiled: April 9, 2014Date of Patent: June 6, 2017Assignee: KOGANEI CORPORATIONInventors: Yoshinari Fukada, Kazuyoshi Onezawa
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Publication number: 20160302293Abstract: Provided is an ion generator that sends out air ions generated by applying high voltage between a discharge electrode and a counter electrode, the ion generator including: an air discharge port provided in a housing of the ion generator to send ejected air toward a region between the discharge electrode and the counter electrode; and an opening portion configured to discharge the generated air ions by the ejected air, in which the counter electrode is positioned on an upstream side of the flow of the ejected air with respect to the discharge electrode.Type: ApplicationFiled: November 11, 2014Publication date: October 13, 2016Inventors: Yoshinari Fukada, Kazuyoshi Onezawa, Yuji Takahashi
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Publication number: 20160044770Abstract: Provided is an ion generator that has a potential sensor provided integrally inside the main body of the ion generator, and that can measure, with the potential sensor, an electric field that reaches the potential sensor from a member from which static charge is to be eliminated, without being affected by an electric field between a discharge electrode and an opposing electrode. This ion generator comprises a discharge electrode, an opposing electrode, and a main body part including these electrodes, the ion generator sending out, toward a member from which static charge is to be eliminated, air ions generated by applying a high voltage between the electrodes.Type: ApplicationFiled: April 9, 2014Publication date: February 11, 2016Applicant: Koganei CorporationInventors: Yoshinari FUKADA, Kazuyoshi ONEZAWA
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Patent number: 9121875Abstract: There is provided a potential measuring device of non-contact type which can improve measurement sensitivity. A potential measuring device which measures a charged object in a non-contact manner with a sensor includes: a first shutter and a second shutter each having a shutter part provided with an opening and a leaf spring part; a magnet attached to the leaf spring part of each of the first shutter and the second shutter; a yoke on which a coil is disposed, the coil applying an alternating magnetic field to the magnet of each of the first shutter and the second shutter to cause the shutter part to reciprocate via the leaf spring part; and a natural frequency adjusting means for adjusting a natural frequency of at least one of a first shutter system including the first shutter and the magnet and a second shutter system including the second shutter and the magnet.Type: GrantFiled: April 22, 2013Date of Patent: September 1, 2015Assignee: KOGANEI CORPORATIONInventors: Yoshinari Fukada, Fumihito Meguro
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Patent number: 9110109Abstract: A potential measuring device which measures a charged object in a non-contact manner with a sensor may include a first shutter having a first shutter part, which is provided with a first opening which can be positioned at a position opposing the sensor, and leaf spring parts extending from both ends thereof; a second shutter having a second shutter part, which is provided with a second opening which can be positioned at a position opposing the sensor and the first opening, and leaf spring parts extending from both ends thereof; a coil provided so that a direction along a center axis opposes portions of the leaf spring parts; and a magnet provided on each of regions opposing both end sides of the coil in the leaf spring parts extending from the both ends of each of the first shutter part and the second shutter part.Type: GrantFiled: April 22, 2013Date of Patent: August 18, 2015Assignee: KOGANEI CORPORATIONInventor: Yoshinari Fukada
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Publication number: 20150123008Abstract: In an ion generator, a flexible discharge electrode 44 composed of one wire is provided to a base 43, and a swinging motion or a turning motion of a free end 44b of the discharge electrode 44 about a fixed end 44a of the discharge electrode 44 is performed by repulsive force of a corona discharge generated by supplying a high voltage to the fixed end 44a. Therefore, in comparison with a discharge electrode composed of a bundle of thin wires, it is possible to significantly reduce dust emission from the free end 44b of the discharge electrode 44, and to further improve the ion generator 30 in maintenance interval. Since the discharge electrode 44 is compose of one wire, it is possible to reduce the discharge electrode 44 in size, easily observe the state of the discharge electrode 44, and simplify its maintenance.Type: ApplicationFiled: November 8, 2012Publication date: May 7, 2015Inventor: Yoshinari Fukada
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Patent number: 8901506Abstract: An air ion measuring apparatus (20) is used for measuring the amount of ions in ionized air generated by an ion generating apparatus (10) having a discharge electrode (11) and a nozzle (12) serving as a discharge electrode. The air ion measuring apparatus (20) has a cylindrical electrode (22), and when the length of the cylindrical electrode (22) is denoted by “l”, a flow rate of air which flows through the cylindrical electrode (22) is denoted by “U”, detection current which flows in the electrode 22 is denoted by “Im”, time constant is denoted by “?”, and the detection current “Im” is denoted by a current detector (33), current generated by passage of ion is calculated by I 0 = U ? ? ? + l l ? I m ? [ A ] , it is possible to measure the amount of ions from the calculated carried ion current “I0”, and to measure the amount of ions while splaying the ionized air to an object required to be electrically neutralized.Type: GrantFiled: January 27, 2011Date of Patent: December 2, 2014Assignee: Koganei CorporationInventor: Yoshinari Fukada
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Patent number: 8890070Abstract: In an ion generator, a flexible discharge electrode 44 composed of one wire is provided to a base 43, and a turning motion of a free end 44b of the discharge electrode 44 about a fixed end 44a of the discharge electrode 44 is performed by repulsive force of a corona discharge generated by supplying a high voltage to the fixed end 44a. Therefore, in comparison with a discharge electrode composed of a bundle of thin wires, it is possible to significantly reduce dust emission from the free end 44b of the discharge electrode 44, and to further improve the ion generator 30 in maintenance interval. Since the discharge electrode 44 is compose of one wire, it is possible to reduce the discharge electrode 44 in size, easily observe the state of the discharge electrode 44, and simplify its maintenance. Since the discharge electrode 44 performs a turning motion, it is possible to transport the generated air ions EI to a wide area of a packaging film 10, and to enhance ionizing efficiency.Type: GrantFiled: August 29, 2011Date of Patent: November 18, 2014Assignee: Koganei CorporationInventor: Yoshinari Fukada
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Patent number: 8730641Abstract: A static electricity removing apparatus for removing static electricity of a charged object comprises a discharge electrode which generates an ionized air having a polarity opposite to that of the object by discharge, an auxiliary electrode which is provided with openings for the ionized air generated by the discharge electrode to pass through, and an electric field forming means which forms an electric field in a space between the auxiliary electrode and the object. The electric field forming means generates the electric field between the auxiliary electrode and the object by allowing a potential having a polarity opposite to that of the object to occur in the auxiliary electrode at the start of the static electricity removal and decreases the electric field between the auxiliary electrode and the object when an absolute value of the potential of the object is equal to or less than a predetermined value.Type: GrantFiled: February 6, 2012Date of Patent: May 20, 2014Assignee: Koganei CorporationInventor: Yoshinari Fukada
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Patent number: 8681471Abstract: An ion generator 10a has an ejection head 18 as an opposite electrode and a discharge electrode 16, and generates air ions by corona discharge. A nozzle 14 supporting the discharge electrode 16 is attached to a base member 12 formed with an air supply path 11, and the nozzle 14 is formed with an exposure surface 24 for exposing the tip end portion 16b of the discharge electrode 16 and a tapered surface 25. The nozzle 14 is formed with air guide holes 26 which communicate with the air supply path 11, and ejection ports of the air guide holes 26 are open on the tapered surface 25. Compressed air ejected from the ejection port is flowed along the tapered surface 25 so that outside air surrounding the nozzle 14 is involved in the compressed air, and sprayed in a front direction of the discharge electrode 16.Type: GrantFiled: April 14, 2011Date of Patent: March 25, 2014Assignee: Koganei CorporationInventor: Yoshinari Fukada
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Publication number: 20130299717Abstract: In an ion generator, a flexible discharge electrode 44 composed of one wire is provided to a base 43, and a turning motion of a free end 44b of the discharge electrode 44 about a fixed end 44a of the discharge electrode 44 is performed by repulsive force of a corona discharge generated by supplying a high voltage to the fixed end 44a. Therefore, in comparison with a discharge electrode composed of a bundle of thin wires, it is possible to significantly reduce dust emission from the free end 44b of the discharge electrode 44, and to further improve the ion generator 30 in maintenance interval. Since the discharge electrode 44 is compose of one wire, it is possible to reduce the discharge electrode 44 in size, easily observe the state of the discharge electrode 44, and simplify its maintenance. Since the discharge electrode 44 performs a turning motion, it is possible to transport the generated air ions EI to a wide area of a packaging film 10, and to enhance ionizing efficiency.Type: ApplicationFiled: August 29, 2011Publication date: November 14, 2013Applicant: Koganei CorporationInventor: Yoshinari Fukada
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Publication number: 20130161512Abstract: An ion generator 10a has an ejection head 18 as an opposite electrode and a discharge electrode 16, and generates air ions by corona discharge. A nozzle 14 supporting the discharge electrode 16 is attached to a base member 12 formed with an air supply path 11, and the nozzle 14 is formed with an exposure surface 24 for exposing the tip end portion 16b of the discharge electrode 16 and a tapered surface 25. The nozzle 14 is formed with air guide holes 26 which communicate with the air supply path 11, and ejection ports of the air guide holes 26 are open on the tapered surface 25. Compressed air ejected from the ejection port is flowed along the tapered surface 25 so that outside air surrounding the nozzle 14 is involved in the compressed air, and sprayed in a front direction of the discharge electrode 16.Type: ApplicationFiled: April 14, 2011Publication date: June 27, 2013Applicant: Koganei CorporationInventor: Yoshinari Fukada
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Publication number: 20130105700Abstract: An air ion measuring apparatus (20) is used for measuring the amount of ions in ionized air generated by an ion generating apparatus (10) having a discharge electrode (11) and a nozzle (12) serving as a discharge electrode. The air ion measuring apparatus (20) has a cylindrical electrode (22), and when the length of the cylindrical electrode (22) is denoted by “l”, a flow rate of air which flows through the cylindrical electrode (22) is denoted by “U”, detection current which flows in the electrode 22 is denoted by “Im”, time constant is denoted by “?”, and the detection current “Im” is denoted by a current detector (33), current generated by passage of ion is calculated by I 0 = U ? ? ? + l l ? I m ? [ A ] , it is possible to measure the amount of ions from the calculated carried ion current “I0”, and to measure the amount of ions while splaying the ionized air to an object required to be electrically neutralized.Type: ApplicationFiled: January 27, 2011Publication date: May 2, 2013Inventor: Yoshinari Fukada
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Patent number: 8355237Abstract: A maintenance operation of an ion generator can be easily performed. A device main body has an inner case and an outer case, and the inner case having a support block and an air supply pipe is inserted into the outer case. An opposite electrode is detachably mounted in the support block from a front side of the device main body, and a discharge needle unit is detachably mounted from a reversed direction thereto. The discharge needle unit has a holder, in which the discharge electrode is provided, and a sleeve, which forms an ion generating space between the opposite electrode and the sleeve, is detachably mounted in the holder. Air supplied from an outside is supplied to the ion generating space via a flow path in the air supply pipe.Type: GrantFiled: February 14, 2011Date of Patent: January 15, 2013Assignee: Koganei CorporationInventors: Kazuo Kotsuji, Kazuyoshi Onezawa, Yoshinari Fukada, Akira Goto
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Publication number: 20120212874Abstract: A static electricity removing apparatus for removing static electricity of a charged object comprises a discharge electrode which generates an ionized air having a polarity opposite to that of the object by discharge, an auxiliary electrode which is provided with openings for the ionized air generated by the discharge electrode to pass through, and an electric field forming means which forms an electric field in a space between the auxiliary electrode and the object. The electric field forming means generates the electric field between the auxiliary electrode and the object by allowing a potential having a polarity opposite to that of the object to occur in the auxiliary electrode at the start of the static electricity removal and decreases the electric field between the auxiliary electrode and the object when an absolute value of the potential of the object is equal to or less than a predetermined value.Type: ApplicationFiled: February 6, 2012Publication date: August 23, 2012Applicant: KOGANEI CORPORATIONInventor: Yoshinari FUKADA
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Patent number: 8035948Abstract: This static eliminator is used for eliminating static electricity from an object by ionizing the air to be blown to a charged object, and has a case 12 body provided with an air blow duct 15 for blowing out an ionized air, and an electric discharge module 27 being mounted detachably on the case body 12. The electric discharge module 27 has an electric discharge needle substrate 31 having a plurality of electric discharge needles 38 arranged straightly, and a surface panel 32 detachably mounted on the case body, and the electric discharge module 27 is mounted on the case body 12 by mean of a mounting screw member 36 in the portion of the surface panel 12. By dismounting the electric discharge module 27 from the case body 12, the electric discharge needles can be replaced.Type: GrantFiled: April 11, 2007Date of Patent: October 11, 2011Assignee: Koganei CorporationInventors: Kazuyoshi Onezawa, Yoshinari Fukada, Yosuke Enomoto
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Publication number: 20110199714Abstract: A maintenance operation of an ion generator can be easily performed. A device main body has an inner case and an outer case, and the inner case having a support block and an air supply pipe is inserted into the outer case. An opposite electrode is detachably mounted in the support block from a front side of the device main body, and a discharge needle unit is detachably mounted from a reversed direction thereto. The discharge needle unit has a holder, in which the discharge electrode is provided, and a sleeve, which forms an ion generating space between the opposite electrode and the sleeve, is detachably mounted in the holder. Air supplied from an outside is supplied to the ion generating space via a flow path in the air supply pipe.Type: ApplicationFiled: February 14, 2011Publication date: August 18, 2011Applicant: KOGANEI CORPORATIONInventors: Kazuo Kotsuji, Kazuyoshi Onezawa, Yoshinari Fukada, Akira Goto
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Patent number: 7561403Abstract: A static eliminator capable of replacing a discharge needle and improving maintainability of the eliminator is disclosed. The static eliminator comprises: an air-guiding duct having a tubular portion provided with an outer electrode and a boss portion; and an electric discharge module detachably mounted on the tubular portion, wherein ionized air is supplied to the air-guiding duct by a fan of an air blower. The electric discharge module has a holder fitted in a boss portion and a plurality of discharge electrodes attached to the holder so as to protrude toward the outer electrode in an outer-radial direction. When foreign substances or the like adhere to a tip of the discharge electrode or when the discharge electrode deteriorates, the electric discharge module is detached from the boss portion.Type: GrantFiled: January 13, 2006Date of Patent: July 14, 2009Assignees: Koganei Corporation, Shishido Electrostatic, Ltd.Inventors: Kazuyoshi Onezawa, Yoshinari Fukada, Yosuke Enomoto
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Publication number: 20090116162Abstract: This static eliminator is used for eliminating static electricity from an object by ionizing the air to be blown to a charged object, and has a case 12 body provided with an air blow duct 15 for blowing out an ionized air, and an electric discharge module 27 being mounted detachably on the case body 12. The electric discharge module 27 has an electric discharge needle substrate 31 having a plurality of electric discharge needles 38 arranged straightly, and a surface panel 32 detachably mounted on the case body, and the electric discharge module 27 is mounted on the case body 12 by mean of a mounting screw member 36 in the portion of the surface panel 12. By dismounting the electric discharge module 27 from the case body 12, the electric discharge needles can be replaced.Type: ApplicationFiled: April 11, 2007Publication date: May 7, 2009Applicant: Koganei CorporationInventors: Kazuyoshi Onezawa, Yoshinari Fukada, Yosuke Enomoto