Patents by Inventor Seiichi Suzuki
Seiichi Suzuki 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: 9945170Abstract: A door opening and closing apparatus opens and closes a slide door by cooperating with a guide roller unit fixed to the slide door of a vehicle. The guide roller unit includes a guide member and a belt-side bracket connected to the guide member. The door opening and closing apparatus includes a support member made of resin, plural pulleys supported at the support member, and a transmission belt engaged at the plural pulleys. The support member is fixed to a body of the vehicle and includes a rail portion at which the guide member is mounted. The belt-side bracket is fixed to the transmission belt. An electric drive source moves the transmission belt for opening and closing the slide door in a state where the guide member is guided along the rail portion. The support member includes an engagement portion configured to hold the belt-side bracket.Type: GrantFiled: December 22, 2014Date of Patent: April 17, 2018Assignee: AISIN SEIKI KABUSHIKI KAISHAInventors: Shin Sakai, Seiichi Suzuki, Eisuke Nakanishi
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Patent number: 9758621Abstract: Provided is an ethyleneimine polymer which exhibits excellent close adhesion properties and adhesive properties and has a low water content, and a method for producing the same. An ethyleneimine polymer, in which the number average molecular weight (Mn) of the ethyleneimine polymer measured by gel permeation chromatography in terms of pullulan is 13,000 or more and the value obtained by dividing the weight average molecular weight by the number average molecular weight (weight average molecular weight: Mw/number average molecular weight: Mn=degree of dispersion) of the ethyleneimine polymer is from 1.4 to 3.0.Type: GrantFiled: August 4, 2014Date of Patent: September 12, 2017Assignee: NIPPON SHOKUBAI CO., LTD.Inventors: Seiichi Suzuki, Taisuke Kasahara
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Publication number: 20170247511Abstract: Provided is an ethyleneimine polymer which exhibits excellent close adhesion properties and adhesive properties and is unlikely to form a gel-like film, and a method for producing the same. An ethyleneimine polymer, wherein a number average molecular weight (Mn) of the ethyleneimine polymer measured by gel permeation chromatography in terms of pullulan is 13,000 or more, a degree of dispersion of the ethyleneimine polymer is greater than 3.0 and 5.0 or less, and a water content in the ethyleneimine polymer is from 3 to 35% by weight.Type: ApplicationFiled: October 17, 2014Publication date: August 31, 2017Inventors: SEIICHI SUZUKI, TAISUKE KASAHARA
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Publication number: 20170002597Abstract: A door opening and closing apparatus opens and closes a slide door by cooperating with a guide roller unit fixed to the slide door of a vehicle. The guide roller unit includes a guide member and a belt-side bracket connected to the guide member. The door opening and closing apparatus includes a support member made of resin, plural pulleys supported at the support member, and a transmission belt engaged at the plural pulleys. The support member is fixed to a body of the vehicle and includes a rail portion at which the guide member is mounted. The belt-side bracket is fixed to the transmission belt. An electric drive source moves the transmission belt for opening and closing the slide door in a state where the guide member is guided along the rail portion. The support member includes an engagement portion configured to hold the belt-side bracket.Type: ApplicationFiled: December 22, 2014Publication date: January 5, 2017Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Shin SAKAI, Seiichi SUZUKI, Eisuke NAKANISHI
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Publication number: 20170002598Abstract: An opening and closing apparatus of an opening and closing member includes a support member including a first support wall portion and a second support wall portion, a support pin including axially opposed end portions, a pulley arranged between the first and second support wall portions, a transmission belt engaged at the pulley, and an electric drive source moving the transmission belt. The first support wall portion includes a penetration bore into which one of the axially opposed end portions of the support pin is inserted to be positioned and a slit continuously provided to the insertion bore. An engagement portion is provided at an axial tip end of the support pin, the engagement portion including a step engageable with a peripheral edge portion of the penetration bore and a tapered portion connected to the step and reduced in diameter towards a tip end of the engagement portion.Type: ApplicationFiled: December 23, 2014Publication date: January 5, 2017Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Seiichi SUZUKI, Shin SAKAI, Eisuke NAKANISHI
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Publication number: 20160185906Abstract: Provided is an ethyleneimine polymer which exhibits excellent close adhesion properties and adhesive properties and has a low water content, and a method for producing the same. An ethyleneimine polymer, in which the number average molecular weight (Mn) of the ethyleneimine polymer measured by gel permeation chromatography in terms of pullulan is 13,000 or more and the value obtained by dividing the weight average molecular weight by the number average molecular weight (weight average molecular weight: Mw/number average molecular weight: Mn=degree of dispersion) of the ethyleneimine polymer is from 1.4 to 3.0.Type: ApplicationFiled: August 4, 2014Publication date: June 30, 2016Applicant: NIPPON SHOKUBAI CO., LTD.Inventors: Seiichi SUZUKI, Taisuke KASAHARA
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Publication number: 20160169989Abstract: An object of the present invention is to provide a technique to improve a manufacturing yield of a gas cell included in a magnetic field measuring apparatus. A gas cell GC according to an embodiment is characterized in that, for example, a cavity CAV includes an opening OP1 and an opening OP2, a plane size of the opening OP1 becomes larger than a plane size of the opening OP2 in the openings OP1 and OP2 included in the cavity CAV. Especially, according to the embodiment, the opening OP2 is included in the opening OP1 in plan view. Consequently, a width of the opening OP1 coming into contact with an upper surface of the sealing substrate 1S becomes larger than a width of the opening OP2 coming into contact with a lower surface of the sealing substrate 2S.Type: ApplicationFiled: August 8, 2013Publication date: June 16, 2016Applicant: Hitachi, Ltd.Inventors: Seiichi SUZUKI, Taro OSABE, Yudai KAMADA, Ryuzo KAWABATA, Akihiko KANDORI
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Patent number: 9366735Abstract: Stable magnetic field measurement is enabled without collapse of polarization or fluctuation of intensity of a laser beam incident on a glass cell of an optical pumping magnetic sensor. Excitation light generated with a light source, having optimized light intensity and polarized wave, through frequency stabilization, intensity control and polarized-wave control, is introduced via a polarized wave holding optical fiber to a magnetic sensor provided in a magnetic shield, and magnetic field measurement is performed by optical pumping using magneto-optical properties of spin-polarized alkali metal. The magnetic sensor has a structure where a lens, a polarization optical device, the glass cell and a photodetector, are integrally accommodated in a non-magnetic case.Type: GrantFiled: March 14, 2013Date of Patent: June 14, 2016Assignee: Hitachi, Ltd.Inventors: Ryuzo Kawabata, Akihiko Kandori, Taro Osabe, Seiichi Suzuki, Yudai Kamada
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Publication number: 20160146909Abstract: A magnetic measurement device has a magnetic sensor including a glass cell having alkali metal gas encapsulated therein that is configured to detect a magnetic field using a magneto-optical characteristic of spin-polarized alkali metal. A laser light source is configured to generate pump light introduced into the magnetic sensor and a coil provided in the same magnetically shielded space as the magnetic sensor is configured to apply a static magnetic field and a RF magnetic field to the magnetic sensor. A signal processor is configured to perform lock-in detection of a light detection signal transmitted through the glass cell of the magnetic sensor, control an intensity of the static magnetic field and a frequency of the RF magnetic field generated by the coil according to a lock-in detection output, and obtain a measurement signal reflecting a magnetic field intensity of an object to be measured in the magnetically shielded space.Type: ApplicationFiled: August 2, 2013Publication date: May 26, 2016Inventors: Ryuzo KAWABATA, Akihiko KANDORI, Taro OSABE, Seiichi SUZUKI, Yuudai KAMADA
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Patent number: 9310447Abstract: In order to provide a magnetic field measuring apparatus facilitating the pressure control in a gas cell, or capable of inspecting the internal pressure of the gas cell without using any special process, the magnetic field measuring apparatus is configured such that a process layer of the magnetic field measuring apparatus has such a structure that includes a first hollow portion and a second hollow portion provided opposed to first hollow portion with a first isolation wall interposed therebetween. Alternatively, a method for manufacturing the magnetic field measuring apparatus includes breaking the first isolation wall after generating alkali metal (FIG. 17 and FIG. 20).Type: GrantFiled: November 18, 2011Date of Patent: April 12, 2016Assignee: HITACHI, LTD.Inventors: Yudai Kamada, Taro Osabe, Seiichi Suzuki, Akihiko Kandori, Ryuzo Kawabata
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Patent number: 9211841Abstract: A step apparatus for a vehicle includes a step panel facing an opening formed at a body of a vehicle and fixed to a step support portion which is provided at the body, the step panel made of resin and securing a moving path of an opening and closing member, the moving path being secured at a void defined between the step panel and the step support portion in a height direction of the vehicle, and a leg member connected to the step panel and configured to extend between the step panel and the step support portion at a predetermined position on the moving path in an open state of the opening and closing member, the leg member moving away from the moving path for clearing the moving path before the opening and closing member reaches the leg member during a closing operation of the opening and closing member.Type: GrantFiled: January 15, 2015Date of Patent: December 15, 2015Assignee: AISIN SEIKI KABUSHIKI KAISHAInventors: Seiichi Suzuki, Shin Sakai, Eisuke Nakanishi
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Publication number: 20150203043Abstract: A step apparatus for a vehicle includes a step panel facing an opening formed at a body of a vehicle and fixed to a step support portion which is provided at the body, the step panel made of resin and securing a moving path of an opening and closing member, the moving path being secured at a void defined between the step panel and the step support portion in a height direction of the vehicle, and a leg member connected to the step panel and configured to extend between the step panel and the step support portion at a predetermined position on the moving path in an open state of the opening and closing member, the leg member moving away from the moving path for clearing the moving path before the opening and closing member reaches the leg member during a closing operation of the opening and closing member.Type: ApplicationFiled: January 15, 2015Publication date: July 23, 2015Applicant: Aisin Seiki Kabushiki KaishaInventors: Seiichi SUZUKI, Shin Sakai, Eisuke Nakanishi
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Publication number: 20150197974Abstract: An opening and closing apparatus for an opening and closing member includes a support member, a transmission belt, a plurality of pulleys including a pair of driven pulleys, a first support wall portion including a first support recess portion, a second support wall portion including a second support recess portion coaxial with the first support recess portion, the second support wall portion being disposed to face the first support wall portion, and a support pin including a first end portion fitted in the first support recess portion, a second end portion fitted in the second support recess portion, and a shaft portion formed at an intermediate portion in an axial direction to be sandwiched between the first support wall portion and the second support wall portion and rotatably supporting each of the driven pulleys, the shaft portion being eccentric relative to the first end portion and the second end portion.Type: ApplicationFiled: January 13, 2015Publication date: July 16, 2015Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Seiichi SUZUKI, Shin SAKAI, Eisuke NAKANISHI
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Publication number: 20140306700Abstract: In order to provide a magnetic field measuring apparatus facilitating the pressure control in a gas cell, or capable of inspecting the internal pressure of the gas cell without using any special process, the magnetic field measuring apparatus is configured such that a process layer of the magnetic field measuring apparatus has such a structure that includes a first hollow portion and a second hollow portion provided opposed to first hollow portion with a first isolation wall interposed therebetween. Alternatively, a method for manufacturing the magnetic field measuring apparatus includes breaking the first isolation wall after generating alkali metal (FIG. 17 and FIG. 20).Type: ApplicationFiled: November 18, 2011Publication date: October 16, 2014Applicant: HITACHI, LTD.Inventors: Yudai Kamada, Taro Osabe, Seiichi Suzuki, Akihiko Kandori, Ryuzo Kawabata
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Patent number: 8845924Abstract: The present invention provides a water absorbing agent, including: water absorbent resin particles; and a modified cationic polymer compound containing a primary amino group and/or a secondary amino group, the modified cationic polymer compound being obtained by reacting, with a modifying agent, a cationic polymer compound containing the primary amino group and/or the secondary amino group, and the modifying agent containing two or more carbon atoms continuously linked, and one reactive group which reacts with the primary amino group and/or the secondary amino group. The present invention further provides a method for producing a water absorbing agent including water absorbent resin particles, the method including the step (i) of mixing the water absorbent resin particles with a modified cationic polymer compound.Type: GrantFiled: September 26, 2008Date of Patent: September 30, 2014Assignee: Nippon Shokubai Co., Ltd.Inventors: Yoshifumi Adachi, Kazushi Torii, Yusuke Watanabe, Taishi Kobayashi, Toshimasa Kitayama, Seiichi Suzuki, Atsuro Yoneda
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Patent number: 8777296Abstract: A step unit that guides a sliding door of a vehicle includes a step member and a rail plate member. The step member includes first and second lower rails. The first lower rail has two ends that face toward each other to form a cutout portion in between. The rail plate member is arranged in the cutout portion. The step member includes an insertion hole and an extended portion. The insertion hole is located at a position corresponding to the cutout portion. The extended portion is extended from at least one of the two ends to support the rail plate member against a load received by the rail plate member from the roller. The rail plate member is inserted through the insertion hole from above the upper side of the step member and fixed by a fastening member to the step member.Type: GrantFiled: August 10, 2011Date of Patent: July 15, 2014Assignee: Aisin Seiki Kabushiki KaishaInventors: Seiichi Suzuki, Tsutomu Takeuchi, Toshihiko Ishida
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Patent number: 8622408Abstract: A step unit comprises: a step member which is provided on the vehicle body side so as to be adjacent to a slide door of the vehicle and has a flat plate section on which an occupant's foot is placed; and a drive device which is affixed to the step member and drives the slide door to open and close the slide door. The step member is molded using a resin material and has a accommodation portion which is provided with a bottom formed below the upper surface of the flat plate section. The drive device is affixed while at least a part thereof is accommodated within the accommodation portion.Type: GrantFiled: November 17, 2010Date of Patent: January 7, 2014Assignee: Aisin Seiki Kabushiki KaishaInventors: Toshihiko Ishida, Tsutomu Takeuchi, Shigeyuki Miyazaki, Shin Sakai, Seiichi Suzuki
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Publication number: 20130341745Abstract: A light pumping magnetic measurement apparatus configured to suppress an influence on a magnetic field from a heater and facilitate reduction in size and integration of a gas cell when heating the gas cell in order to improve a sensitivity of detection of the magnetic field is provided. This measurement apparatus includes a first glass substrate, a substrate 102 having a thermal conductivity higher than glass, and a second glass substrate laminated in this order.Type: ApplicationFiled: March 14, 2011Publication date: December 26, 2013Applicant: Hitachi, Ltd.Inventors: Seiichi Suzuki, Taro Osabe, Ryuzo Kawabata
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Publication number: 20130307291Abstract: A step unit that guides a sliding door of a vehicle includes a step member and a rail plate member. The step member includes first and second lower rails. The first lower rail has two ends that face toward each other to form a cutout portion in between. The rail plate member is arranged in the cutout portion. The step member includes an insertion hole and an extended portion. The insertion hole is located at a position corresponding to the cutout portion. The extended portion is extended from at least one of the two ends to support the rail plate member against a load received by the rail plate member from the roller. The rail plate member is inserted through the insertion hole from above the upper side of the step member and fixed by a fastening member to the step member.Type: ApplicationFiled: August 10, 2011Publication date: November 21, 2013Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Seiichi Suzuki, Tsutomu Takeuchi, Toshihiko Ishida
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Publication number: 20130265042Abstract: Stable magnetic field measurement is enabled without collapse of polarization or fluctuation of intensity of a laser beam incident on a glass cell of an optical pumping magnetic sensor. Excitation light generated with a light source, having optimized light intensity and polarized wave, through frequency stabilization, intensity control and polarized-wave control, is introduced via a polarized wave holding optical fiber to a magnetic sensor provided in a magnetic shield, and magnetic field measurement is performed by optical pumping using magneto-optical properties of spin-polarized alkali metal. The magnetic sensor has a structure where a lens, a polarization optical device, the glass cell and a photodetector, are integrally accommodated in a non-magnetic case.Type: ApplicationFiled: March 14, 2013Publication date: October 10, 2013Applicant: HITACHI, LTD.Inventors: Ryuzo KAWABATA, Akihiko KANDORI, Taro OSABE, Seiichi SUZUKI, Yudai KAMADA