Patents by Inventor Yoshiharu Kiyohara
Yoshiharu Kiyohara 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: 10816037Abstract: A seal member for a linear guide including a guide rail and slider movably set on the guide rail through rolling elements, the seal member, attached to the slider, configured to seal an opening of a gap between the guide rail and slider, the seal member includes: fibers having been impregnated with rubber or resin, wherein a sliding contact part of said seal member, which is in sliding contact with the guide rail, is made of the fibers.Type: GrantFiled: March 26, 2019Date of Patent: October 27, 2020Assignees: NITTA CORPORATION, THK CO., LTD.Inventors: Takehito Dei, Yoji Ishizaki, Yoshiharu Kiyohara, Kenichiro Aoki, Yasuhiro Aoki
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Patent number: 10713553Abstract: Provided is a technique for preventing the occurrence of damage, such as breaking of an antenna, due to bending, in an IC tag in which an IC chip is protected with a reinforcing member. An IC tag according to an aspect of the present invention is an IC tag attachable to an article, and includes an inlay including an IC chip and an antenna electrically connected to the IC chip; at least one reinforcing member that is disposed on at least one face of the inlay so as to protect the IC chip; and at least one sheet-like cover member that is disposed on at least one face side of the inlay and that covers the reinforcing member. The cover member is not adhesively joined in a region around the reinforcing member and is adhesively joined to at least one of the inlay and the reinforcing member in another region.Type: GrantFiled: September 8, 2016Date of Patent: July 14, 2020Assignee: NITTA CORPORATIONInventors: Toshiharu Shimai, Yoshiharu Kiyohara
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Patent number: 10572792Abstract: The present invention provides an IC tag container to be attached to an attachment target member, the IC tag container including an IC tag that includes an IC chip and an antenna configured to electrically transmit and receive information stored in the IC chip, at least one reinforcing member that is disposed on at least one surface of the IC tag and that covers the IC chip, at least one sheet-like cover member that is disposed on the at least one surface side of the IC tag and that covers at least the antenna and the reinforcing member, and an enclosing member that is disposed on the at least one surface side of the IC tag, that covers the IC tag, the reinforcing member, and the cover member, and that is attachable to the attachment target member, wherein the cover member is configured to be slidable along at least a portion of the IC tag, and the cover member is not adhesively joined to the IC tag around the reinforcing member.Type: GrantFiled: September 4, 2015Date of Patent: February 25, 2020Assignee: NITTA CORPORATIONInventors: Toshiharu Shimai, Yoshiharu Kiyohara
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Publication number: 20190286964Abstract: Provided is a technique for preventing the occurrence of damage, such as breaking of an antenna, due to bending, in an IC tag in which an IC chip is protected with a reinforcing member. An IC tag according to an aspect of the present invention is an IC tag attachable to an article, and includes an inlay including an IC chip and an antenna electrically connected to the IC chip; at least one reinforcing member that is disposed on at least one face of the inlay so as to protect the IC chip; and at least one sheet-like cover member that is disposed on at least one face side of the inlay and that covers the reinforcing member. The cover member is not adhesively joined in a region around the reinforcing member and is adhesively joined to at least one of the inlay and the reinforcing member in another region.Type: ApplicationFiled: September 8, 2016Publication date: September 19, 2019Applicant: NITTA CORPORATIONInventors: Toshiharu SHIMAI, Yoshiharu KIYOHARA
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Publication number: 20190219101Abstract: A seal member for a linear guide including a guide rail and slider movably set on the guide rail through rolling elements, the seal member, attached to the slider, configured to seal an opening of a gap between the guide rail and slider, the seal member includes: fibers having been impregnated with rubber or resin, wherein a sliding contact part of said seal member, which is in sliding contact with the guide rail, is made of the fibers.Type: ApplicationFiled: March 26, 2019Publication date: July 18, 2019Inventors: Takehito Dei, Yoji Ishizaki, Yoshiharu Kiyohara, Kenichiro Aoki, Yasuhiro Aoki
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Patent number: 10344795Abstract: A shaft structure installed in a shaft capable of making a power-transmission, the shaft structure including: a male component having a plurality of male splines formed on an outer peripheral part thereof; and a female component having a plurality of female splines formed on an inner peripheral part thereof, the inner peripheral part configured to allow the outer peripheral part of the male component to be engaged therein so that the male component and the female component can be slidably fitted with respect to each other in an axial direction thereby making up said shaft structure, wherein the outer peripheral part of the male component and the inner peripheral part of the female component have a fabric impregnated with rubber or resin interposed therebetween.Type: GrantFiled: December 18, 2014Date of Patent: July 9, 2019Assignee: NITTA CORPORATIONInventors: Kenichiro Aoki, Yoshiharu Kiyohara, Yoji Ishizaki, Katsuyuki Nakai, Yasuhiro Aoki, Toshihiko Kojima
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Publication number: 20190197382Abstract: The present invention provides an IC tag container to be attached to an attachment target member, the IC tag container including an IC tag that includes an IC chip and an antenna configured to electrically transmit and receive information stored in the IC chip, at least one reinforcing member that is disposed on at least one surface of the IC tag and that covers the IC chip, at least one sheet-like cover member that is disposed on the at least one surface side of the IC tag and that covers at least the antenna and the reinforcing member, and an enclosing member that is disposed on the at least one surface side of the IC tag, that covers the IC tag, the reinforcing member, and the cover member, and that is attachable to the attachment target member, wherein the cover member is configured to be slidable along at least a portion of the IC tag, and the cover member is not adhesively joined to the IC tag around the reinforcing member.Type: ApplicationFiled: September 4, 2015Publication date: June 27, 2019Applicant: NITTA CORPORATIONInventors: Toshiharu SHIMAI, Yoshiharu KIYOHARA
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Publication number: 20170138408Abstract: A shaft structure installed in a shaft capable of making a power-transmission includes a male component having splines and spline bottoms on an outer periphery, a female component having splines and spline bottoms on an inner periphery and allows the male component to be slidably inserted in an axial direction thereby making up the shaft structure, and an elastic member covering the outer or inner periphery of the male or female component, wherein the female component has substantially U or V-shaped cross-section grooves on the outer periphery as opposed to splines, and a shape defined by the spline of the female component and the groove is such a shape that when the male or female component is twisted and a stress is applied to the spline in a direction around the shaft, the spline could be elastically deformed and absorb a maximum design stress within an elastic region.Type: ApplicationFiled: January 30, 2017Publication date: May 18, 2017Inventors: Yoji Ishizaki, Yoshiharu Kiyohara, Kenichiro Aoki, Takehito Dei, Yasuhiro Aoki
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Patent number: 9488255Abstract: A ball screw including: a male component having male grooves on an outer periphery for a ball to roll; a female component fitted together with the male component in an axial direction having female grooves facing the male grooves on an inner periphery for the ball to roll and a circulation path for the ball to circulate; and a seal member at one end, at the other end, or at each of one and the other ends of the female component in the axial direction and including a hole capable of communicating with the inner periphery, a fiber layer having a fitting surface having a convex part capable of being fitted in the male grooves when the male component is inserted into the hole and a surface made of fibers impregnated with rubber or resin, and a rubber or resin layer laminated on a surface opposite to the fitting surface.Type: GrantFiled: December 9, 2014Date of Patent: November 8, 2016Assignee: NITTA CORPORATIONInventors: Yoji Ishizaki, Yoshiharu Kiyohara, Kenichiro Aoki, Katsuyuki Nakai, Yasuhiro Aoki, Toshihiko Kojima, Mitsuhiro Yamada, Takuya Taira
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Patent number: 9458871Abstract: A shaft structure including: a male component having male spline parts and male spline bottom parts on an outer peripheral part; a female component having female spline parts and female spline bottom parts on an inner peripheral part configured to allow the male component to be slidably inserted in an axial direction; and an elastic member arranged on the male component covering a surface of the outer peripheral part of the male component, wherein, in an initial state where the male component is inserted into the female component, the female and male components have first gaps between: sides of the female spline parts; and sides-facing portions of the elastic member, and when the male component is rotated, a time from the initial state to a state where the sides of the female spline parts abut on the portions of the elastic member, has predetermined time differences along the axial direction.Type: GrantFiled: June 9, 2015Date of Patent: October 4, 2016Assignee: NITTA CORPORATIONInventors: Yoji Ishizaki, Yoshiharu Kiyohara, Katsuyuki Nakai, Kenichiro Aoki, Yasuhiro Aoki
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Publication number: 20160102748Abstract: A rack includes a plurality of thin plates laminated with each other, wherein each of the plurality of thin plates is formed with a set of rack teeth, and adjacent thin plates, which are laminated adjacently to each other, of the plurality of thin plates are fixed together such that respective rack-tooth positions of the adjacent thin plates are displaced from each other in axial directions of adjacent sets of rack teeth.Type: ApplicationFiled: December 18, 2015Publication date: April 14, 2016Inventors: Kenichiro Aoki, Yoshiharu Kiyohara, Takehito Dei, Yoji Ishizaki, Yasuhiro Aoki
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Publication number: 20150275946Abstract: A shaft structure including: a male component having male spline parts and male spline bottom parts on an outer peripheral part; a female component having female spline parts and female spline bottom parts on an inner peripheral part configured to allow the male component to be slidably inserted in an axial direction; and an elastic member arranged on the male component covering a surface of the outer peripheral part of the male component, wherein, in an initial state where the male component is inserted into the female component, the female and male components have first gaps between: sides of the female spline parts; and sides-facing portions of the elastic member, and when the male component is rotated, a time from the initial state to a state where the sides of the female spline parts abut on the portions of the elastic member, has predetermined time differences along the axial direction.Type: ApplicationFiled: June 9, 2015Publication date: October 1, 2015Inventors: Yoji Ishizaki, Yoshiharu Kiyohara, Katsuyuki Nakai, Kenichiro Aoki, Yasuhiro Aoki
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Publication number: 20150114156Abstract: A ball screw including: a male component having male grooves on an outer periphery for a ball to roll; a female component fitted together with the male component in an axial direction having female grooves facing the male grooves on an inner periphery for the ball to roll and a circulation path for the ball to circulate; and a seal member at one end, at the other end, or at each of one and the other ends of the female component in the axial direction and including a hole capable of communicating with the inner periphery, a fiber layer having a fitting surface having a convex part capable of being fitted in the male grooves when the male component is inserted into the hole and a surface made of fibers impregnated with rubber or resin, and a rubber or resin layer laminated on a surface opposite to the fitting surface.Type: ApplicationFiled: December 9, 2014Publication date: April 30, 2015Inventors: Yoji Ishizaki, Yoshiharu Kiyohara, Kenichiro Aoki, Katsuyuki Nakai, Yasuhiro Aoki, Toshihiko Kojima, Mitsuhiro Yamada, Takuya Taira
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Publication number: 20150110551Abstract: A shaft structure installed in a shaft capable of making a power-transmission, the shaft structure including: a male component having a plurality of male splines formed on an outer peripheral part thereof; and a female component having a plurality of female splines formed on an inner peripheral part thereof, the inner peripheral part configured to allow the outer peripheral part of the male component to be engaged therein so that the male component and the female component can be slidably fitted with respect to each other in an axial direction thereby making up said shaft structure, wherein the outer peripheral part of the male component and the inner peripheral part of the female component have a fabric impregnated with rubber or resin interposed therebetween.Type: ApplicationFiled: December 18, 2014Publication date: April 23, 2015Inventors: Kenichiro Aoki, Yoshiharu Kiyohara, Yoji Ishizaki, Katsuyuki Nakai, Yasuhiro Aoki, Toshihiko Kojima
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Patent number: 8564472Abstract: In one embodiment of the present invention, a conductive pattern portion formed in a pattern layer functions as an antenna, and, when electromagnetic waves at a predetermined frequency arrive, resonance occurs, and an electromagnetic wave of a specific frequency is introduced into a sheet member. As to the sheet member having the pattern layer, even in a small and thin sheet member, the phase of reflected waves from the reflection area can be adjusted, and thus an area having high electric field intensity due to interference between reflected waves from the reflection area and arriving electromagnetic waves can be set in the vicinity of the antenna element. When the sheet member is disposed between an antenna element and a communication jamming member, an electromagnetic field is generated around the conductive pattern portion, and an electromagnetic energy is supplied from the conductive pattern portion to the antenna element, and therefore receiving power of the antenna element can be increased.Type: GrantFiled: October 23, 2006Date of Patent: October 22, 2013Assignee: Nitta CorporationInventors: Haruhide Okamura, Takahiko Yoshida, Masato Matsushita, Yoshiharu Kiyohara, Shinichi Sato, Ryota Yoshihara, Kazuhisa Morita, Hiroaki Kogure
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Patent number: 7804439Abstract: A thin, light and soft electromagnetic wave absorber is disclosed exhibiting an excellent workability. The first conductor element group of a first conductor element layer consists of aligned cross conductor elements and square conductor elements in regions surrounded by cross conductor elements. A radio wave incident from the first conductor element layer side is received by each element, internally subjected to multiple reflection and then absorbed by a first loss material layer. Since the first conductor element group is realized by the cross conductor elements and the square conductor elements, receiving effect is enhanced and the radio wave can be collected with a high collection efficiency.Type: GrantFiled: March 1, 2004Date of Patent: September 28, 2010Assignee: Nitta CorporationInventors: Takahiko Yoshida, Haruhide Go, Yoshiharu Kiyohara, Shinichi Sato, Makoto Maezawa, Mamoru Maenaka
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Publication number: 20100052992Abstract: In one embodiment of the present invention, a conductive pattern portion formed in a pattern layer functions as an antenna, and, when electromagnetic waves at a predetermined frequency arrive, resonance occurs, and an electromagnetic wave of a specific frequency is introduced into a sheet member. As to the sheet member having the pattern layer, even in a small and thin sheet member, the phase of reflected waves from the reflection area can be adjusted, and thus an area having high electric field intensity due to interference between reflected waves from the reflection area and arriving electromagnetic waves can be set in the vicinity of the antenna element. When the sheet member is disposed between an antenna element and a communication jamming member, an electromagnetic field is generated around the conductive pattern portion, and an electromagnetic energy is supplied from the conductive pattern portion to the antenna element, and therefore receiving power of the antenna element can be increased.Type: ApplicationFiled: October 23, 2006Publication date: March 4, 2010Inventors: Haruhide Okamura, Takahiko Yoshida, Masato Matsushita, Yoshiharu Kiyohara, Shinichi Sato, Ryota Yoshihara, Kazuhisa Morita, Hiroaki Kogure
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Patent number: 7561114Abstract: An electromagnetic interference suppressor of substantially unpressurized sheet form is obtained by applying and drying a magnetic paint, and comprises 30 to 80% by volume of soft magnetic powder and 20 to 70% by volume of a binder. The binder is an elastomer or a resin that a glass transition point and/or a softening point is 50° C. or more and a storage modulus (E?) is 107 Pa (JIS K 7244-1) or more in a state containing neither solvent nor filler at room temperature. This electromagnetic interference suppressor exerts a superior electromagnetic interference suppressing effect.Type: GrantFiled: December 5, 2005Date of Patent: July 14, 2009Assignee: Nitta CorporationInventors: Makoto Maezawa, Takahiko Yoshida, Yoshiharu Kiyohara, Shinichi Sato, Haruhide Go
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Patent number: 7495181Abstract: A conductive pattern basically has a substantially polygonal outline shape which is a polygon and can have a high peak value of the electromagnetic wave absorption amount as compared to a case when the conductive pattern has a circular outline shape. Thus, the conductive pattern is basically a polygon and at least one corner portion is shaped in curve. This reduces or even minimizes the shift of the frequency at which the absorption amount becomes a peak value by the polarization direction of the electromagnetic wave. Accordingly, in at least one embodiment, it is possible to realize an electromagnetic absorber having an excellent electromagnetic wave absorption characteristic exhibiting a high peak value of the absorption amount of the electromagnetic wave and a small shift of frequency at which the absorption amount becomes a peak value by the polarization direction of the electromagnetic wave.Type: GrantFiled: September 29, 2005Date of Patent: February 24, 2009Assignee: Nitta CorporationInventors: Masato Matsushita, Takahiko Yoshida, Haruhide Go, Yoshiharu Kiyohara, Makoto Maezawa, Shinichi Sato
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Publication number: 20080257599Abstract: A conductive pattern basically has a substantially polygonal outline shape which is a polygon and can have a high peak value of the electromagnetic wave absorption amount as compared to a case when the conductive pattern has a circular outline shape. Thus, the conductive pattern is basically a polygon and at least one corner portion is shaped in curve. This reduces or even minimizes the shift of the frequency at which the absorption amount becomes a peak value by the polarization direction of the electromagnetic wave. Accordingly, in at least one embodiment, it is possible to realize an electromagnetic absorber having an excellent electromagnetic wave absorption characteristic exhibiting a high peak value of the absorption amount of the electromagnetic wave and a small shift of frequency at which the absorption amount becomes a peak value by the polarization direction of the electromagnetic wave.Type: ApplicationFiled: September 29, 2005Publication date: October 23, 2008Applicant: NITTA CORPORATIONInventors: Masato Matsushita, Takahiro Yoshida, Haruhide Go, Yoshiharu Kiyohara, Makoto Maezawa, Shinichi Sato