Patents by Inventor Hideki Yamada
Hideki Yamada 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).
-
Patent number: 9808925Abstract: An impact tool includes a casing (13) supporting a tip tool (12), a piston (41) provided in the casing (13), an electric motor (11) provided in the casing (13), a motion converting mechanism (45) provided in the casing (13), and a vibration reducing mechanism (47) provided in the casing (13). The vibration reducing mechanism (47) has a supporting member, which is swingable with using a fixing position (J) as a supporting point and a weight (49) attached to a free end side of the supporting member. In a plane including a center line (C), the gravity center (H) of the weight (49) and the gravity center (G) of the casing (13) are disposed at mutually different locations, and the fixing position (J) is disposed on the side of the gravity center (G) relative to the center line (C).Type: GrantFiled: March 19, 2013Date of Patent: November 7, 2017Assignee: HITACHI KOKI CO., LTD.Inventors: Hideki Yamada, Takahiro Ookubo, Satoshi Abe
-
Publication number: 20170314987Abstract: An attachment monitoring system according to an embodiment includes a working machine, attachments, a measurement unit, a terminal device, and a server device. The working machine includes a working arm. Each of the attachments is attached to a leading end part of the working arm so as to be driven by a fluid pressure. The measurement unit is provided to measure at least one of a vibration and the fluid pressure when each of the attachments identified on the basis of individual identifying information is driven. The terminal device is provided in the working machine to acquire measured results of the measurement unit. The server device collects the measured results of the respective attachments from the terminal device, and analyzes operation states of the respective attachments on the basis of the collected measured results.Type: ApplicationFiled: April 26, 2017Publication date: November 2, 2017Applicant: TOKU PNEUMATIC CO., LTD.Inventors: Hideki YAMADA, Yasuo HIROKAWA, Shunichi SAKAMOTO, Junji TAKAI, Masayuki OBATA
-
Publication number: 20160369224Abstract: The present invention relates to a culture vessel which can be broadly applied to culture, regeneration, manufactures observation and the like of targets such as cells, organs, and microorganisms. In the culture vessel of the present invention, a first vessel 10 and a second vessel 20 each being a close-bottom, open-top vessel are provided. In the first vessel 10 and the second vessel 20, a sideways-facing opening 12 and a sideways-facing opening 22 are formed. The opening 12 and the opening 22 communicate in a watertight manner when the openings 12, 22 are connected face to face.Type: ApplicationFiled: July 31, 2014Publication date: December 22, 2016Applicants: KANAZAWA MEDICAL UNIVERSITY, SHINKO CHEMICAL CO., LTD.Inventors: Takeo SHIMASAKI, Yumiko KITANO, Hideki YAMADA
-
Patent number: 9488192Abstract: An assembling and disassembling device for a compressor has a substantially cylindrical bundle that is received insertably and removably on an inner circumferential surface of a substantially tubular compressor casing that is mounted horizontally and further includes: a plate-like member that is provided on an axial end portion of the bundle at an opposite side of an insertion direction so as to protrude outward in a radial direction of the bundle and a threaded-rod member that inserts and removes the bundle connected to the plate-like member into and from the compressor casing by being screwed into a threaded hole provided in the plate-like member and being rotated.Type: GrantFiled: July 25, 2011Date of Patent: November 8, 2016Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATIONInventors: Mitsuhiko Ota, Hideki Yamada
-
Patent number: 9417327Abstract: A selection method of satellites for RTK positioning calculation includes initializing a mask threshold of the elevation angle mask and/or the signal strength mask, setting the mask threshold as a first mask threshold other than a mask threshold which carried out an initial setting, performing a first RTK positioning calculation based on a signal from the satellite, performing a first quality check about a positioning solution in the first RTK positioning calculation, and when the first quality check is under the threshold of the ratio test, performing a second RTK positioning calculation based on the signal from the satellite newly chosen via the first mask threshold and performing a second quality check about a second positioning solution in the second RTK positioning calculation.Type: GrantFiled: April 9, 2012Date of Patent: August 16, 2016Assignee: ELECTRONIC NAVIGATION RESEARCH INSTITUTE, AN INDEPENDENT ADMINISTRATIVE INSTITUTIONInventor: Hideki Yamada
-
Patent number: 9410595Abstract: This invention obtains damping force in choke characteristics when piston speed is in low-speed region, and reduces damping force when piston speed is in medium-high-speed region. A damping valve for a shock absorber includes a piston partitioning an extension-side chamber from a pressure-side chamber, a returner laminated to pressure-side chamber side of piston, a flow passage penetrating from piston to returner and having entrance constantly communicating with expansion-side chamber, a leaf valve laminated to retainer and operably closing an exit of expansion-side flow passage, a first outer peripheral groove formed on outer periphery of piston rod. A passage T functioning as a choke is formed between first outer peripheral groove and retainer. One side of passage communicates with flow passage and other side thereof communicates with compression-side chamber.Type: GrantFiled: June 5, 2013Date of Patent: August 9, 2016Assignee: KYB CorporationInventor: Hideki Yamada
-
Patent number: 9347512Abstract: A damping valve includes a valve disk, a retainer, an inner peripheral side flow passage configured to include a valve disk through hole formed in an inner peripheral side of the valve disk and a retainer through hole formed in the retainer and allowing communication between one and other chambers, an outer peripheral side flow passage formed in an outer peripheral side of the valve disk and allowing communication between the one and the other chambers, and a leaf valve in the form of an annular plate arranged on a side of the retainer opposite to the valve disk and configured to openably close the inner peripheral side flow passage by an outer peripheral part. A flow passage area of the retainer through hole is not smaller than that of the valve disk through hole.Type: GrantFiled: February 18, 2013Date of Patent: May 24, 2016Assignee: KYB CorporationInventor: Hideki Yamada
-
Patent number: 9285008Abstract: A damping valve includes a piston with a one-side disk and an other-side disk, a port configured to include through holes, a piston rod, and a nut. A plurality of the through holes of the other-side disk are formed along between the inner peripheral seat surface and the outer peripheral seat surface. Elastic deforming portions are formed between the through holes of the other-side disk. A clearance is formed between the inner peripheral seat surface of the one-side disk and that of the other-side disk in a state where the nut is not tightened and the outer peripheral seat surface of the one-side disk and that of the other-side disk are in contact. The elastic deforming portions of the other-side disk are strained and the respective inner peripheral seat surfaces come into contact in a state where the nut is tightened.Type: GrantFiled: February 18, 2013Date of Patent: March 15, 2016Assignee: KYB CorporationInventor: Hideki Yamada
-
Publication number: 20160052119Abstract: An impact tool includes a casing (13) supporting a tip tool (12), a piston (41) provided in the casing (13), an electric motor (11) provided in the casing (13), a motion converting mechanism (45) provided in the casing (13), and a vibration reducing mechanism (47) provided in the casing (13). The vibration reducing mechanism (47) has a supporting member, which is swingable with using a fixing position (J) as a supporting point and a weight (49) attached to a free end side of the supporting member. In a plane including a center line (C), the gravity center (H) of the weight (49) and the gravity center (G) of the casing (13) are disposed at mutually different locations, and the fixing position (J) is disposed on the side of the gravity center (G) relative to the center line (C).Type: ApplicationFiled: March 19, 2013Publication date: February 25, 2016Applicant: HITACHI KOKI CO., LTD.Inventors: Hideki YAMADA, Takahiro OOKUBO, Satoshi ABE
-
Patent number: 9203514Abstract: According to one embodiment, a transmission system includes a transmitter and a receiver. The transmitter includes a modulator configured to modulate transmission data at a chip rate to generate a modulation signal, and one or a plurality of light sources configured to emit visible light according to the modulation signal. The receiver includes a light receiver having one or more lines of light receiving elements to receive light in a first range including the visible light; and a demodulator configured to demodulate image data generated according to the light received by the light receiver to generate reception data corresponding to the transmission data. A following equation is satisfied ff<fm where fm is the chip rate, and ff is a frame rate of the light receiver.Type: GrantFiled: February 28, 2013Date of Patent: December 1, 2015Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Jun Deguchi, Hideaki Majima, Toshiyuki Yamagishi, Nau Ozaki, Ichiro Seto, Koji Horisaki, Masahiro Sekiya, Hideki Yamada, Yuki Fujimura
-
Patent number: 9200692Abstract: A leaf valve structure according to this invention comprises an annular valve seat, and a leaf that is seated on the valve seat under a predetermined elastic supporting force against a pressure of a working fluid on an inner side of the valve seat. A recessed depression portion having an opening portion on both an inner periphery of the valve seat and a seating surface of the leaf is formed in the valve seat, thereby creating a site where the pressure of the working fluid on the inner side of the valve seat can act more easily on a seating surface between the valve seat and the leaf valve. Accordingly, an effect of a surface adsorption force applied to the leaf valve by the valve seat on a cracking pressure can be suppressed, and as a result, the leaf valve can be lifted under a stable cracking pressure.Type: GrantFiled: March 24, 2011Date of Patent: December 1, 2015Assignees: KAYABA INDUSTRY CO., LTD., FINE SINTER CO., LTD.Inventors: Hideki Yamada, Tomoharu Murakami, Tadashi Oikawa, Tomohito Amino, Yoshinori Nomura
-
Publication number: 20150211634Abstract: A piston includes a disc formed to have an annular shape, a cylindrical skirt portion that projects from an outer peripheral portion of the disc on one end side in an axial direction of the disc, and a passage that is formed in the disc and that is opened on an inner side of the skirt portion. An inner peripheral surface of the skirt portion is a slope that increases its diameter toward a side opposite to the disc.Type: ApplicationFiled: November 13, 2013Publication date: July 30, 2015Applicant: KAYABA INDUSTRY CO., LTD.Inventors: Yukimasa Kobayashi, Hideki Yamada, Yuta Hoshino
-
Publication number: 20150192184Abstract: This invention obtains damping force in choke characteristics when piston speed is in low-speed region, and reduces damping force when piston speed is in medium-high-speed region. A damping valve for a shock absorber includes a piston partitioning an extension-side chamber from a pressure-side chamber, a returner laminated to pressure-side chamber side of piston, a flow passage penetrating from piston to returner and having entrance constantly communicating with expansion-side chamber, a leaf valve laminated to retainer and operably closing an exit of expansion-side flow passage, a first outer peripheral groove formed on outer periphery of piston rod. A passage T functioning as a choke is formed between first outer peripheral groove and retainer. One side of passage communicates with flow passage and other side thereof communicates with compression-side chamber.Type: ApplicationFiled: June 5, 2013Publication date: July 9, 2015Applicant: KAYABA INDUSTRY CO., LTD.Inventor: Hideki Yamada
-
Publication number: 20150034437Abstract: A damping valve includes a valve disk, a retainer, an inner peripheral side flow passage configured to include a valve disk through hole formed in an inner peripheral side of the valve disk and a retainer through hole formed in the retainer and allowing communication between one and other chambers, an outer peripheral side flow passage formed in an outer peripheral side of the valve disk and allowing communication between the one and the other chambers, and a leaf valve in the form of an annular plate arranged on a side of the retainer opposite to the valve disk and configured to openably close the inner peripheral side flow passage by an outer peripheral part. A flow passage area of the retainer through hole is not smaller than that of the valve disk through hole.Type: ApplicationFiled: February 18, 2013Publication date: February 5, 2015Applicant: KAYABA INDUSTRY CO., LTD.Inventor: Hideki Yamada
-
Publication number: 20150034434Abstract: In a damping valve having a partition that separates a first chamber and a second chamber, a valve seat that is formed on an end surface of the partition facing the first chamber or the second chamber; and a leaf valve whose outer-circumferential end portion is separably seated on the valve seat, the leaf valve has a plurality of orifices for allowing working fluid to flow therethrough in the outer-circumferential end portion, and the plurality of orifices are concentrated in an arbitrary region along a circumferential direction in the outer-circumferential end portion of the leaf valve.Type: ApplicationFiled: February 22, 2013Publication date: February 5, 2015Applicant: KAYABA INDUSTRY CO., LTD.Inventors: Toshimichi Izeki, Hideki Yamada, Masahiro Miwa
-
Publication number: 20150008083Abstract: A damping valve includes a piston with a one-side disk and an other-side disk, a port configured to include through holes, a piston rod, and a nut. A plurality of the through holes of the other-side disk are formed along between the inner peripheral seat surface and the outer peripheral seat surface. Elastic deforming portions are formed between the through holes of the other-side disk. A clearance is formed between the inner peripheral seat surface of the one-side disk and that of the other-side disk in a state where the nut is not tightened and the outer peripheral seat surface of the one-side disk and that of the other-side disk are in contact. The elastic deforming portions of the other-side disk are strained and the respective inner peripheral seat surfaces come into contact in a state where the nut is tightened.Type: ApplicationFiled: February 18, 2013Publication date: January 8, 2015Applicant: KAYABA INUSTRY CO., LTDInventor: Hideki Yamada
-
Patent number: 8802314Abstract: It is an object of the present invention to provide a fuel cell electrolyte membrane reinforced with a porous substrate which has excellent durability and in which the amount of cross leakage as a result of chemical deterioration of electrolyte membrane components due to the presence of peroxide and/or radicals is particularly reduced. The present invention relates to an electrolyte membrane for a fuel cell comprising a polyelectrolyte, which contains a porous substrate and a radical scavenger dispersed in the polyelectrolyte.Type: GrantFiled: October 15, 2009Date of Patent: August 12, 2014Assignees: Toyota Jidosha Kabushiki Kaisha, W.L. Gore & Associates, Co., Ltd.Inventors: Yasuhiro Akita, Masanori Aimu, Tatsuya Kawahara, Takeshi Nagasawa, Toyohiro Matsuura, Takeyuki Suzuki, Hiroshi Kato, Hideki Yamada
-
Patent number: 8794451Abstract: An object of the present invention is to provide a hollow-fiber ultrafiltration membrane that can be used in treatment in various aqueous fluids such as water purification, beverage treatment, seawater clarification, and that has excellent fractionation characteristics and permeability, while deterioration of its performance due to passage of time is minimized, and that has excellent recovery of the membrane-separation characteristics by cleaning. The main feature of the hollow-fiber ultrafiltration membrane of the present invention is that the specific surface area of the membrane surface to which raw water is supplied falls within the range from not less than 1.10 to not greater than 1.55. The present invention also provides a process for producing a hollow-fiber ultrafiltration membrane, wherein a heat treatment is conducted under the condition that the membrane having a residual organic solvent content of not greater than 300 mg/g.Type: GrantFiled: August 20, 2010Date of Patent: August 5, 2014Assignee: Toyo Boseki Kabushiki KaishaInventors: Kenta Kochi, Tsuyoshi Hoshiyama, Hideki Sugihara, Akihiro Ariji, Koichi Baba, Hideki Yamada
-
Patent number: D719428Type: GrantFiled: June 13, 2013Date of Patent: December 16, 2014Assignee: Hitachi Koki Co., Ltd.Inventors: Yoshiki Aoki, Masanori Okada, Hideki Yamada
-
Patent number: D799929Type: GrantFiled: August 22, 2016Date of Patent: October 17, 2017Assignee: Hitachi Koki Co., Ltd.Inventors: Yoshiki Aoki, Shinichi Kakefuda, Rui Akiba, Hideki Yamada