Patents by Inventor Kenji Nishihara
Kenji Nishihara 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: 8813345Abstract: A method for manufacturing a disk drive device includes (a) assembling a sub assembly by assembling a bearing unit and a rotating body to a fixed body in a clean room, the rotating body being supported by the bearing unit in a freely rotatable manner to the fixed body, (b) cleaning the sub assembly by spraying a mixture of a cleaning liquid and a first gas to at least either one of the fixed body and the rotating body; and (c) enclosing the sub assembly using an enclosing member.Type: GrantFiled: June 11, 2012Date of Patent: August 26, 2014Assignee: Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd.Inventors: Kenji Nishihara, Hirofumi Kajiwara
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Publication number: 20140082929Abstract: A rotating device includes a hub on which a magnetic recording disk is to be mounted, and a base that supports the hub in a freely rotatable manner. When at least either one of the base and the hub is referred to as a work-piece, a method for manufacturing the rotating device includes a forming step for forming the work-piece, a blowing step for blowing the formed work-piece with solid grains, a cleaning step for cleaning the work-piece blown by the grains using a cleaning fluid, an assembling step for assembling the rotating device using the cleaned work-piece. The grains have a property of vaporizing in the cleaning step or being soluble with the cleaning fluid therein.Type: ApplicationFiled: September 24, 2013Publication date: March 27, 2014Applicant: SAMSUNG ELECTRO-MECHANICS JAPAN ADVANCED TECHNOLOGY CO., LTD.Inventors: Mitsuhiro AONO, Kenji NISHIHARA
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Publication number: 20130333204Abstract: An embodiment of the present invention is a method of manufacturing a hard disk drive device including a hub member on which a recording disk is to be mounted and a base member configured to rotatably support the hub member via a bearing part. When constituent members including the base member, the hub member, and the bearing part are referred to as works, the manufacturing method includes: cleaning at least one of the works with a cleaning agent containing at least one of an ester and an ether, and a surfactant; and assembling the hard disk drive device by using the work having been subjected to the cleaning.Type: ApplicationFiled: June 13, 2013Publication date: December 19, 2013Applicant: Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd.Inventors: Kenji Nishihara, Winya Dungkaew, Masayuki Ishikawa
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Publication number: 20130305523Abstract: In a method of manufacturing a disk drive device, a cleaning process and an assembly process are performed in succession in a clean room having a predetermined cleanness level. The cleaning process includes an alkali cleaning process, a first purified water cleaning process, a second purified water cleaning process, a spray cleaning process, a draining process and a drying process. In the first purified water cleaning process, purified water ultrasonic wave cleaning is sequentially performed on the base member of the disk drive device to be cleaned by using ultrasonic waves of frequencies of 40 kHz, 68 kHz and 132 kHz in purified water filled in a first purified water cleaning tank. The cleaned base member and other components having a predetermined cleanness level are assembled in the assembly process continuous from the cleaning process.Type: ApplicationFiled: July 24, 2013Publication date: November 21, 2013Applicant: Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd.Inventor: Kenji Nishihara
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Patent number: 8516685Abstract: In a method of manufacturing a disk drive device, a cleaning process and an assembly process are performed in succession in a clean room having a predetermined cleanness level. The cleaning process includes an alkali cleaning process, a first purified water cleaning process, a second purified water cleaning process, a spray cleaning process, a draining process and a drying process. In the first purified water cleaning process, purified water ultrasonic wave cleaning is sequentially performed on the base member of the disk drive device to be cleaned by using ultrasonic waves of frequencies of 40 kHz, 68 kHz and 132 kHz in purified water filled in a first purified water cleaning tank. The cleaned base member and other components having a predetermined cleanness level are assembled in the assembly process continuous from the cleaning process.Type: GrantFiled: January 13, 2010Date of Patent: August 27, 2013Assignee: Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd.Inventor: Kenji Nishihara
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Patent number: 8426315Abstract: A method of manufacturing a semiconductor device is disclosed that includes a semiconductor wafer having a main surface including a device chip area, a peripheral area encompassing the device chip area, and a blank area situated between the device chip area and the peripheral area. The method includes the steps of coating the entire main surface of the semiconductor wafer with a positive photosensitive resist, defining an additional exposure area in the blank area, conducting a first exposure process on the peripheral area and the additional exposure area, conducting a second exposure process on the device chip area, removing resist remaining on predetermined areas of the device chip area, the peripheral area and the blank area after conducting the first and second exposure processes for forming a resist pattern, and dry-etching the main surface of the semiconductor wafer by using the resist pattern as a mask.Type: GrantFiled: September 22, 2006Date of Patent: April 23, 2013Assignee: Ricoh Company, Ltd.Inventors: Shouji Tochishita, Kenji Nishihara, Tohru Haruki, Tadao Uehara, Kiyotaka Ishibushi
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Publication number: 20130025117Abstract: A rotating device comprises a hub on which a magnetic recording disk is to be mounted and a base rotatably supporting the hub. At least one of the base and the hub is an item of manufacture. A method for manufacturing the rotating device comprises the steps of forming the item of manufacture, immersing the formed item of manufacture in an aqueous solution, the solute of which being a surfactant and the temperature of which being higher than the melting point of heptacosane, taking out the item of manufacture from the aqueous solution and immersing the item of manufacture in a liquid that can be regarded as pure water, taking out the item of manufacture from the liquid and drying the item of manufacture, and assembling the rotating device using the dried item of manufacture.Type: ApplicationFiled: June 26, 2012Publication date: January 31, 2013Applicant: ALPHANA TECHNOLOGY CO., LTD.Inventors: Kenji NISHIHARA, Masayuki ISHIKAWA
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Publication number: 20130000106Abstract: A method of manufacturing a disk drive device including: assembling a subassembly by fixing at least a bearing unit, a drive unit and a hub to a base member in a first clean room; cleaning the subassembly in a second clean room; and sealing the subassembly by a sealing member. The first clean room and the second clean room are communicated with each other by a communicating opening for transferring the subassembly, and an atmospheric pressure in the second clean room is equal to or higher than that in the first clean room.Type: ApplicationFiled: September 12, 2012Publication date: January 3, 2013Applicant: ALPHANA TECHNOLOGY CO., LTD.Inventors: Yuji Omura, Kenji Nishihara
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Publication number: 20120317794Abstract: A method for manufacturing a disk drive device includes (a) assembling a sub assembly by assembling a bearing unit and a rotating body to a fixed body in a clean room, the rotating body being supported by the bearing unit in a freely rotatable manner to the fixed body, (b) cleaning the sub assembly by spraying a mixture of a cleaning liquid and a first gas to at least either one of the fixed body and the rotating body; and (c) enclosing the sub assembly using an enclosing member.Type: ApplicationFiled: June 11, 2012Publication date: December 20, 2012Applicant: ALPHANA TECHNOLOGY CO., LTD.Inventors: Kenji NISHIHARA, Hirofumi Kajiwara
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Patent number: 8312617Abstract: A method of manufacturing a disk drive device including: assembling a subassembly by fixing at least a bearing unit, a drive unit and a hub to a base member in a first clean room; cleaning the subassembly in a second clean room; and sealing the subassembly by a sealing member. The first clean room and the second clean room are communicated with each other by a communicating opening for transferring the subassembly, and an atmospheric pressure in the second clean room is equal to or higher than that in the first clean room.Type: GrantFiled: September 17, 2009Date of Patent: November 20, 2012Assignee: Alphana Technology Co., Ltd.Inventors: Yuji Omura, Kenji Nishihara
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Patent number: 8205701Abstract: An operating system for a tractor to which an implement is attachable, the operating system comprises: a steering wheel provided rearwardly of a hood that houses an engine located in a forward region of the tractor; a control panel provided rearwardly of the hood and adjacent the steering wheel; a center cover extending generally vertically below the steering wheel; an operation lever provided at a position laterally of the control panel; a valve unit with a pair of spools, the valve unit being located at a lower position with respect to the steering wheel and being covered by the center cover; a link mechanism that links the operation lever and the pair of spools, the link mechanism being covered by the center cover.Type: GrantFiled: July 6, 2009Date of Patent: June 26, 2012Assignee: Kubota CorporationInventors: Takashi Kuramoto, Masashi Osuga, Hiroshi Shimada, Yoshio Tomiyama, Takeshi Komorida, Hironobu Nishihara, Kenji Nishihara, Takashi Shibata
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Patent number: 8116894Abstract: A chemical mechanical polishing method including a step of forming a plurality of interlayer insulating films so as to coat a plurality of projecting patterns, at least one of the plurality of projecting patterns being formed on each of a plurality of substrates, whereby the plurality of projection patterns have different area ratios R with respect to the corresponding substrates, and performing a flattening process on the interlayer insulating films before linear approximation; a step of obtaining a linear approximation formula R=aT+b expressing a relationship between the area ratio R and a polishing time T, where R1, R2, R3, . . . , Rx represent the area ratio R of each of the projecting patterns with respect to the corresponding substrates, and T1, T2, T3, . . .Type: GrantFiled: December 19, 2008Date of Patent: February 14, 2012Assignee: Ricoh Company, Ltd.Inventors: Masanori Miyata, Taro Usami, Koichi Sogawa, Kenji Nishihara, Tadao Uehara, Shisyo Chin, Hiroaki Teratani, Akinori Suzuki, Yuuichi Kohno, Tetsuya Okada, Tohru Haruki
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Patent number: 8056306Abstract: A rear discharge mower comprising: a first shaft; a first blade that is rotated in unison with the first shaft; a second shaft that is configured to be rotated in a direction opposite from a rotational direction of the first shaft; a second blade that is rotated in unison with the second shaft, wherein a grass-clippings discharge path is formed through which grass clippings are discharged in a rearward direction from the area between the first shaft and second shaft; an enclosing casing that supports the blade shafts; and a power train that is accommodated in the enclosing casing and that transmits power to the first and second blade shafts.Type: GrantFiled: August 20, 2009Date of Patent: November 15, 2011Assignee: Kubota CorporationInventors: Kenji Nishihara, Takashi Kuramoto, Masashi Osuga, Takashi Shibata, Satoshi Ogata, Hironobu Nishihara, Hiroshi Kawabata
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Patent number: 8051631Abstract: A rear discharge mower comprising: a first shaft; a first blade that is rotated in unison with the first shaft; a second shaft that is configured to be rotated in a direction opposite from a rotational direction of the first shaft; a second blade that is rotated in unison with the second shaft, wherein a grass-clippings discharge path is formed through which grass clippings are discharged in a rearward direction from the area between the first shaft and second shaft; an enclosing casing that supports the blade shafts; and a power train that is accommodated in the enclosing casing and that transmits power to the first and second blade shafts.Type: GrantFiled: March 19, 2008Date of Patent: November 8, 2011Assignee: Kubota CorporationInventors: Kenji Nishihara, Takashi Kuramoto, Masashi Osuga, Takashi Shibata, Satoshi Ogata, Hironobu Nishihara, Hiroshi Kawabata
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Publication number: 20110063964Abstract: A method of manufacturing a disk drive device including: assembling a subassembly by fixing at least a bearing unit, a drive unit and a hub to a base member in a first clean room; cleaning the subassembly in a second clean room; and sealing the subassembly by a sealing member. The first clean room and the second clean room are communicated with each other by a communicating opening for transferring the subassembly, and an atmospheric pressure in the second clean room is equal to or higher than that in the first clean room.Type: ApplicationFiled: September 17, 2009Publication date: March 17, 2011Applicant: ALPHANA TECHNOLOGY CO., LTD.Inventors: Yuji Omura, Kenji Nishihara
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Publication number: 20100254043Abstract: In a method of manufacturing a disk drive device, a cleaning process and an assembly process are performed in succession in a clean room having a predetermined cleanness level. The cleaning process includes an alkali cleaning process, a first purified water cleaning process, a second purified water cleaning process, a spray cleaning process, a draining process and a drying process. In the first purified water cleaning process, purified water ultrasonic wave cleaning is sequentially performed on the base member of the disk drive device to be cleaned by using ultrasonic waves of frequencies of 40 kHz, 68 kHz and 132 kHz in purified water filled in a first purified water cleaning tank. The cleaned base member and other components having a predetermined cleanness level are assembled in the assembly process continuous from the cleaning process.Type: ApplicationFiled: January 13, 2010Publication date: October 7, 2010Applicant: ALPHANA TECHNOLOGY CO., LTD.Inventor: Kenji Nishihara
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Patent number: 7755207Abstract: A semiconductor wafer is disclosed that includes a substrate; a plurality of device chip areas formed on the substrate; a plurality of scribe lines formed in a lattice-like manner on the substrate, the scribe lines being provided so as to separate the device chip areas from each other; a blank area in which at least one alignment mark formed of a metal film for alignment of the semiconductor wafer is formed, the blank area being provided in an area different from the device chip areas; and a scribe area in which the alignment mark is prevented from existing, the scribe area being provided in each area where the blank area crosses the scribe lines.Type: GrantFiled: February 28, 2006Date of Patent: July 13, 2010Assignee: Ricoh Company, Ltd.Inventors: Koichi Sogawa, Kiyoshi Yano, Tohru Haruki, Hidetsugu Miyake, Shouji Tochishita, Minoru Ohtomo, Kenji Nishihara
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Publication number: 20090308038Abstract: A rear discharge mower comprising: a first shaft; a first blade that is rotated in unison with the first shaft; a second shaft that is configured to be rotated in a direction opposite from a rotational direction of the first shaft; a second blade that is rotated in unison with the second shaft, wherein a grass-clippings discharge path is formed through which grass clippings are discharged in a rearward direction from the area between the first shaft and second shaft; an enclosing casing that supports the blade shafts; and a power train that is accommodated in the enclosing casing and that transmits power to the first and second blade shafts.Type: ApplicationFiled: August 20, 2009Publication date: December 17, 2009Applicant: KUBOTA CORPORATIONInventors: Kenji Nishihara, Takashi Kuramoto, Masashi Osuga, Takashi Shibata, Satoshi Ogata, Hironobu Nishihara, Hiroshi Kawabata
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Publication number: 20090266639Abstract: An operating system for a tractor to which an implement is attachable, the operating system comprises: a steering wheel provided rearwardly of a hood that houses an engine located in a forward region of the tractor; a control panel provided rearwardly of the hood and adjacent the steering wheel; a center cover extending generally vertically below the steering wheel; an operation lever provided at a position laterally of the control panel; a valve unit with a pair of spools, the valve unit being located at a lower position with respect to the steering wheel and being covered by the center cover; a link mechanism that links the operation lever and the pair of spools, the link mechanism being covered by the center cover.Type: ApplicationFiled: July 6, 2009Publication date: October 29, 2009Applicant: KUBOTA CORPORATIONInventors: Takashi Kuramoto, Masashi Osuga, Hiroshi Shimada, Yoshio Tomiyama, Takeshi Komorida, Hironobu Nishihara, Kenji Nishihara, Takashi Shibata
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Patent number: 7558658Abstract: An operating system for a tractor to which an implement is attachable, the operating system comprises: a steering wheel provided rearwardly of a hood that houses an engine located in a forward region of the tractor; a control panel provided rearwardly of the hood and adjacent the steering wheel; a center cover extending generally vertically below the steering wheel; an operation lever provided at a position laterally of the control panel; a valve unit with a pair of spools, the valve unit being located at a lower position with respect to the steering wheel and being covered by the center cover; a link mechanism that links the operation lever and the pair of spools, the link mechanism being covered by the center cover.Type: GrantFiled: March 14, 2006Date of Patent: July 7, 2009Assignee: Kubota CorporationInventors: Takashi Kuramoto, Masashi Osuga, Hiroshi Shimada, Yoshio Tomiyama, Takeshi Komorida, Hironobu Nishihara, Kenji Nishihara, Takashi Shibata