Patents by Inventor Shinji Kawakami
Shinji Kawakami 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: 10255938Abstract: A magnetic recording medium of the present invention includes a non-magnetic substrate, and a magnetic layer containing a magnetic powder. The magnetic powder is constituted by an ?-iron oxide powder. The magnetic layer has a squareness in a thickness direction of 0.65 or more. In a differential curve obtained by differentiating a hysteresis curve in the thickness direction of the magnetic layer, two or more peaks are present. In a case where, out of peaks in the same direction among the above-described peaks, a local maximum of a largest peak in a magnetic field range of +500 oersted [Oe] or more is taken as P1 and a local maximum of a largest peak in a magnetic field range of ?500 oersted [Oe] or more and less than +500 oersted [Oe] is taken as P2, a relationship below is satisfied: 0.25?P2/P1?0.60.Type: GrantFiled: January 31, 2017Date of Patent: April 9, 2019Assignee: MAXELL HOLDINGS, LTD.Inventors: Toshio Hiroi, Shinji Kawakami, Kenji Tanaka
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Patent number: 10195875Abstract: A printing apparatus includes a transport unit which transports a recording medium in a transport direction; a printing unit which prints an image and a mark on the recording medium; and a mark detecting unit which is located on an upstream side of the printing unit in the transport direction, and detects a mark, includes a function of automatically adjusting a detecting sensitivity of the mark detecting unit, and obtains a printing start position using the mark, in which the mark detecting unit has a timer function including an ON delay in which a time between detecting of a mark and outputting of a detecting signal of ON is delayed, uses the timer function when obtaining the printing start position, and does not use the timer function when performing the automatic adjusting.Type: GrantFiled: March 12, 2018Date of Patent: February 5, 2019Assignee: Seiko Epson CorporationInventors: Naoki Hori, Masashi Kitahara, Shinji Kawakami, Atsushi Imamura
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Publication number: 20180350398Abstract: A refractive index nL and an attenuation rate kL of a magnetic layer are obtained by irradiating linearly polarized light at an irradiation angle of 70° from a lengthwise direction of the magnetic layer to the surface of the magnetic layer, and a vertical reflectance RL during vertical incidence of the linearly polarized light in the lengthwise direction is obtained based on nL and kL. A refractive index nT and an attenuation rate kT of the magnetic layer are obtained by irradiating linearly polarized light at an irradiation angle of 70° from a width direction of the magnetic layer to the surface of the magnetic layer, and a vertical reflectance RT during vertical incidence of the linearly polarized light in the width direction is obtained from nT and kT. If a variation rate A (%) of RL and RT is A=|RL/RT?1|×100, the relationship A?10% is established.Type: ApplicationFiled: June 4, 2018Publication date: December 6, 2018Applicant: Maxell Holdings, Ltd.Inventors: Shinji KAWAKAMI, Toshio KAWAKITA, Masao FUJITA
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Publication number: 20180326759Abstract: Technology enabling accurately detected marks on a print medium according to the type of print medium is provided. A printer 1 has a media type identifier 110 that determines the type of medium; a mark sensor 76 that projects light and detects a mark on the medium; and an emittance controller 111 that sets the emittance level of the light the mark sensor 76 projects. The printer 1 can change the operating mode according to the type of medium M identified by the media type identifier 110. In the white medium mode, the mark sensor 76 detects a mark MR with the emittance level set to a white medium emittance level. In the non-white medium mode, the mark sensor 76 detects a mark MR with the emittance level set to a non-white medium emittance level, which is higher than the white medium emittance level.Type: ApplicationFiled: May 9, 2018Publication date: November 15, 2018Inventors: Masashi KITAHARA, Atsushi IMAMURA, Shinji KAWAKAMI, Naoki HORI
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Publication number: 20180272758Abstract: A printing apparatus includes a transport unit which transports a recording medium in a transport direction; a printing unit which prints an image and a mark on the recording medium; and a mark detecting unit which is located on an upstream side of the printing unit in the transport direction, and detects a mark, includes a function of automatically adjusting a detecting sensitivity of the mark detecting unit, and obtains a printing start position using the mark, in which the mark detecting unit has a timer function including an ON delay in which a time between detecting of a mark and outputting of a detecting signal of ON is delayed, uses the timer function when obtaining the printing start position, and does not use the timer function when performing the automatic adjusting.Type: ApplicationFiled: March 12, 2018Publication date: September 27, 2018Inventors: Naoki HORI, Masashi KITAHARA, Shinji KAWAKAMI, Atsushi IMAMURA
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Patent number: 10059551Abstract: A transporting device includes a first driving roller which transports the base material; a second driving roller which is disposed to be closer to a downstream side of the transporting direction than the first driving roller, and transports the base material; a driven roller which nips the base material between the second driving roller and the driven roller, and rotates together with the second driving roller; and an inter-roller transporting path which is provided between the first driving roller and the second driving roller, and through which the base material is transported in a state where the base material is suspended in a direction of gravity and bent. The second driving roller starts winding the base material at a position which is closer to an upstream side of the transporting direction than a position where the driven roller is in contact with the base material.Type: GrantFiled: October 21, 2015Date of Patent: August 28, 2018Assignee: Seiko Epson CorporationInventors: Shinji Kawakami, Akihiro Toya, Masaru Jingushi
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Publication number: 20180182422Abstract: In a magnetic recording medium according to the present invention, if a straight line W having a length of 500 nm and a width of 15 nm is displayed parallel to a width direction of the magnetic layer and a straight line L having a length of 500 nm and a width of 15 nm is displayed parallel to a longitudinal direction of the magnetic layer, the number of magnetic particles that intersect the straight line W is N1, and the number of magnetic particles that intersect the straight line L is N2, then, a relationship of N1/0.5>60 and N2/0.5>60 is established where N1/0.5 is the number of magnetic particles per micrometer obtained by dividing N1 by 0.5 ?m and N2/0.5 is the number of magnetic particles per micrometer obtained by dividing N2 by 0.5 ?m.Type: ApplicationFiled: December 27, 2017Publication date: June 28, 2018Applicant: Maxell Holdings, Ltd.Inventors: Shinji KAWAKAMI, Toshio HIROI, Masao FUJITA
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Patent number: 9944099Abstract: An output value of the transport position output portion when a first mark which is provided in a recording medium is at a predetermined position with respect to a detection region is stored in a storage portion as a reference value, and a start timing of the printing of the image is controlled based on the timing at which the mark detection portion detects the mark after confirming that the first mark reaches a predetermined range from the detection region based on comparison of the output value of the transport position output portion and the reference value with each other, when the transport in the first direction of the recording medium is started.Type: GrantFiled: March 20, 2017Date of Patent: April 17, 2018Assignee: Seiko Epson CorporationInventors: Naoki Hori, Masashi Oba, Kunihiro Kawada, Shinji Kawakami
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Publication number: 20170274683Abstract: An output value of the transport position output portion when a first mark which is provided in a recording medium is at a predetermined position with respect to a detection region is stored in a storage portion as a reference value, and a start timing of the printing of the image is controlled based on the timing at which the mark detection portion detects the mark after confirming that the first mark reaches a predetermined range from the detection region based on comparison of the output value of the transport position output portion and the reference value with each other, when the transport in the first direction of the recording medium is started.Type: ApplicationFiled: March 20, 2017Publication date: September 28, 2017Inventors: Naoki HORI, Masashi OBA, Kunihiro KAWADA, Shinji KAWAKAMI
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Publication number: 20170258252Abstract: A cup holder includes a holder body having a peripheral wall surrounding an accommodation space, a tray provided in the accommodation space and vertically shiftably supported by the peripheral wall, and a height adjuster configured to vertically shift the tray. The height adjuster includes at least one rack gear extending vertically on the peripheral wall, at least one pinion gear rotatably supported by the tray and meshing with the rack gear, and an energizing member provided at the tray and energizing to rotate the pinion gear for upward shift of the tray.Type: ApplicationFiled: February 10, 2017Publication date: September 14, 2017Inventors: Shinichi SAWADA, Shinji KAWAKAMI
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Publication number: 20170221513Abstract: A magnetic recording medium of the present invention includes a non-magnetic substrate, and a magnetic layer containing a magnetic powder. The magnetic powder is constituted by an ?-iron oxide powder. The magnetic layer has a squareness in a thickness direction of 0.65 or more. In a differential curve obtained by differentiating a hysteresis curve in the thickness direction of the magnetic layer, two or more peaks are present. In a case where, out of peaks in the same direction among the above-described peaks, a local maximum of a largest peak in a magnetic field range of +500 oersted [Oe] or more is taken as P1 and a local maximum of a largest peak in a magnetic field range of ?500 oersted [Oe] or more and less than +500 oersted [Oe] is taken as P2, a relationship below is satisfied: 0.25?P2/P1?0.60.Type: ApplicationFiled: January 31, 2017Publication date: August 3, 2017Applicant: HITACHI MAXELL, LTD.Inventors: Toshio HIROI, Shinji KAWAKAMI, Kenji TANAKA
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Patent number: 9662914Abstract: A printing apparatus includes a rotating drum which rotates by winding the printing base material around a circumferential side surface, and through which the printing base material is transported in the transporting direction; a recording portion which forms a printed image with respect to the printing base material on the rotating drum; and a driven roller which is positioned to be closer to a downstream side than the recording portion in the transporting direction, and rotates together with the rotating drum. The driven roller is disposed at a position for regulating a terminal position of the transporting direction in which the printing base material is wound in the rotating drum. The driven roller comes into contact with the printing base material at positions on both sides in a direction which intersects with the transporting direction of a region where the recording portion forms the printed image.Type: GrantFiled: October 23, 2015Date of Patent: May 30, 2017Assignee: Seiko Epson CorporationInventors: Shinji Kawakami, Akihiro Toya
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Patent number: 9463943Abstract: A transporting device which transports a belt-shaped base material by considering a longitudinal direction of the base material as a transporting direction, includes a first driving roller which transports the base material in the transporting direction; a second driving roller which is disposed to be closer to a downstream side of the transporting direction than the first driving roller, and transports the base material in the transporting direction; an inter-roller transporting path which is provided between the first driving roller and the second driving roller, and through which the base material is transported in a state where the base material is suspended in a direction of gravity and bent; and a tension applying portion which suctions a bent part of the base material from a lower side in the direction of gravity, and applies tension to the base material on the inter-roller transporting path.Type: GrantFiled: October 22, 2015Date of Patent: October 11, 2016Assignee: Seiko Epson CorporationInventor: Shinji Kawakami
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Publication number: 20160114997Abstract: A transporting device includes a first driving roller which transports the base material; a second driving roller which is disposed to be closer to a downstream side of the transporting direction than the first driving roller, and transports the base material; a driven roller which nips the base material between the second driving roller and the driven roller, and rotates together with the second driving roller; and an inter-roller transporting path which is provided between the first driving roller and the second driving roller, and through which the base material is transported in a state where the base material is suspended in a direction of gravity and bent. The second driving roller starts winding the base material at a position which is closer to an upstream side of the transporting direction than a position where the driven roller is in contact with the base material.Type: ApplicationFiled: October 21, 2015Publication date: April 28, 2016Inventors: Shinji KAWAKAMI, Akihiro TOYA, Masaru JINGUSHI
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Publication number: 20160114598Abstract: A printing apparatus includes a rotating drum which rotates by winding the printing base material around a circumferential side surface, and through which the printing base material is transported in the transporting direction; a recording portion which forms a printed image with respect to the printing base material on the rotating drum; and a driven roller which is positioned to be closer to a downstream side than the recording portion in the transporting direction, and rotates together with the rotating drum. The driven roller is disposed at a position for regulating a terminal position of the transporting direction in which the printing base material is wound in the rotating drum. The driven roller comes into contact with the printing base material at positions on both sides in a direction which intersects with the transporting direction of a region where the recording portion forms the printed image.Type: ApplicationFiled: October 23, 2015Publication date: April 28, 2016Inventors: Shinji KAWAKAMI, Akihiro TOYA
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Publication number: 20160114597Abstract: A transporting device which transports a belt-shaped base material by considering a longitudinal direction of the base material as a transporting direction, includes a first driving roller which transports the base material in the transporting direction; a second driving roller which is disposed to be closer to a downstream side of the transporting direction than the first driving roller, and transports the base material in the transporting direction; an inter-roller transporting path which is provided between the first driving roller and the second driving roller, and through which the base material is transported in a state where the base material is suspended in a direction of gravity and bent; and a tension applying portion which suctions a bent part of the base material from a lower side in the direction of gravity, and applies tension to the base material on the inter-roller transporting path.Type: ApplicationFiled: October 22, 2015Publication date: April 28, 2016Inventor: Shinji KAWAKAMI
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Publication number: 20160005430Abstract: The magnetic recording medium of the present invention comprises: a non-magnetic substrate; a non-magnetic layer formed on one of principal surfaces of the non-magnetic substrate; and a magnetic layer formed on a principal surface of the non-magnetic layer opposite to the non-magnetic substrate. Mr and t satisfy 0.0020 ?T·m?Mr·t?0.0150 ?T·m, where Mr is the residual magnetic flux density of the magnetic layer, and t is the average thickness of the magnetic layer, L1 satisfies 2 nm?L1?6 nm, where L1 is the average thickness of a first mixed layer that is formed on the surface of the magnetic layer opposite to the non-magnetic layer, and L2 satisfies 0.1?L2/t?0.45, where L2 is the average thickness of a second mixed layer that is formed on the surface of the magnetic layer facing the non-magnetic layer.Type: ApplicationFiled: September 16, 2015Publication date: January 7, 2016Applicant: HITACHI MAXELL, LTD.Inventors: Shinji KAWAKAMI, Sadamu KUSE, Kenji TANAKA
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Patent number: 9165586Abstract: The magnetic recording medium of the present invention comprises: a non-magnetic substrate; a non-magnetic layer formed on one of principal surfaces of the non-magnetic substrate; and a magnetic layer formed on a principal surface of the non-magnetic layer opposite to the non-magnetic substrate. Mr and t satisfy 0.0020 ?T·m?Mr·t?0.0150 ?T·m, where Mr is the residual magnetic flux density of the magnetic layer, and t is the average thickness of the magnetic layer, L1 satisfies 2 nm?L1?6 nm, where L1 is the average thickness of a first mixed layer that is formed on the surface of the magnetic layer opposite to the non-magnetic layer, and L2 satisfies 0.1?L2/t?0.45, where L2 is the average thickness of a second mixed layer that is formed on the surface of the magnetic layer facing the non-magnetic layer.Type: GrantFiled: December 19, 2011Date of Patent: October 20, 2015Assignee: HITACHI MAXELL, LTD.Inventors: Shinji Kawakami, Sadamu Kuse, Kenji Tanaka
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Patent number: 8827438Abstract: A recording apparatus includes a transport unit that intermittently transports an elongated recording medium from an upstream side to a downstream side as the lengthwise direction of the recording medium moves along a transport path. A recording unit adheres a recording material to the recording medium when the recording medium is stopped in a midstream position of the transport path. A drying unit downstream from the recording unit heats and dries the recording material. A contact member has a contact surface continuous contact with the surface of the recording medium opposite the surface thereof to which the recording material is adhered, from the time when the recording medium enters into the drying unit to the time when the recording medium is discharged from the drying unit. The contact member forms the transport path with the contact surface having at least one bent section in the drying unit.Type: GrantFiled: August 19, 2013Date of Patent: September 9, 2014Assignee: Seiko Epson CompositionInventors: Akihiro Toya, Shinji Kawakami
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Publication number: 20140055541Abstract: A recording apparatus includes a transport unit that intermittently transports an elongated recording medium from an upstream side to a downstream side as the lengthwise direction of the recording medium moves along a transport path. A recording unit adheres a recording material to the recording medium when the recording medium is stopped in a midstream position of the transport path. A drying unit downstream from the recording unit heats and dries the recording material. A contact member has a contact surface continuous contact with the surface of the recording medium opposite the surface thereof to which the recording material is adhered, from the time when the recording medium enters into the drying unit to the time when the recording medium is discharged from the drying unit. The contact member forms the transport path with the contact surface having at least one bent section in the drying unit.Type: ApplicationFiled: August 19, 2013Publication date: February 27, 2014Applicant: SEIKO EPSON CORPORATIONInventors: Akihiro TOYA, Shinji KAWAKAMI