Patents by Inventor Takashi Nagase
Takashi Nagase 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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Publication number: 20120125738Abstract: There are provided screw segments 100, 200 that are capable of shearing and kneading feedstock without causing plugs within a cylinder 1 of a screw extruder, and of extruding it from the cylinder 1. The screw segments 100, 200 each comprise a shaft part 111 to be affixed to a screw shaft 7, and a tooth part 112 that protrudes radially outward from the shaft part 111. The tooth part 112 comprises a tooth surface 116 that is formed on the front side relative to the rotation direction of the screw shaft 7, and that is so sloped as to transition gradually forward relative to the rotation direction as it transitions radially outward from the shaft part 111.Type: ApplicationFiled: August 18, 2009Publication date: May 24, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Sadao Ikeda, Takashi Nagase
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Publication number: 20110241485Abstract: A motor device includes a base portion; a transmission portion that is formed with the base portion as one member and is wound around at least a part of an outer periphery of a rotator; and a driving portion which is supported by the base portion, moves the transmission portion by a certain distance in a state in which a rotational force is transmitted between the rotator and the transmission portion, and returns the transmission portion to a predetermined position in a state in which the rotation force transmission state is released.Type: ApplicationFiled: March 30, 2011Publication date: October 6, 2011Applicant: Nikon CorporationInventors: Takashi Nagase, Masashi Okada, Akimitsu Ebihara
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Publication number: 20110202308Abstract: An encoder system includes: a first single-rotation absolute encoder that outputs a first signal corresponding to an angular position of a first rotatable shaft; a power transmission device that transmits the power of the first shaft to a second rotatable shaft with a predetermined transmission ratio; a second single-rotation absolute encoder that outputs a second signal corresponding to an angular position of the second shaft; and a signal processing section that generates data related to the rotation count of the first shaft based on at least the first signal and the second signal.Type: ApplicationFiled: February 24, 2011Publication date: August 18, 2011Applicant: NIKON CORPORATIONInventors: Hiroyuki KISHIDA, Toru MORITA, Yoshiji TAKAHASHI, Kou OHNO, Takashi NAGASE, Kenji OMATA, Hirofumi TAKEUCHI
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Publication number: 20100108647Abstract: A heat transferring member comprises a heat transfer body for melting solder, and a pipe inserted into a hole formed in the heat transfer body, wherein heat from a heating member is conducted to the heat transfer body. The pipe includes a tubular-shaped substrate made of copper or copper alloy, and an aluminum oxide film formed at least on a peripheral surface of the tubular-shaped substrate. The pipe may be press-fitted in the hole.Type: ApplicationFiled: October 30, 2009Publication date: May 6, 2010Inventors: Yoshitomo Teraoka, Takashi Nagase
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Publication number: 20090229134Abstract: This invention provides an encoder including an abnormality detecting device capable of promptly and securely detecting abnormality of the encoder even when abnormality occurs in a power supply of an encoder circuit. A power supply for an encoder circuit (30) and a power supply for an abnormality detecting device (40) use power supplies different from each other, respectively. An analog signal A, which represents a signal state of each unit, for detecting an abnormal state of the encoder is input from the encoder circuit (30) to an abnormality detecting circuit (41). The abnormality detecting circuit (41) detects whether a level of the analog signal falls within a predetermined range or not. When it is detected that the level falls out of the predetermined range, an abnormal signal is generated and the signal is input to an abnormal signal transmitting circuit (42).Type: ApplicationFiled: June 27, 2006Publication date: September 17, 2009Inventor: Takashi Nagase
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Patent number: 7490751Abstract: A soldering iron tip having a copper or copper alloy core and a metal particle sintered member connected to the core to transfer heat therefrom to form a working soldering tip. The sintered member can be manufactured by powder metallurgy from a base material (iron, nickel and/or cobalt particles) and an additive (silicon, copper, silver, tin, boron and/or carbon particles) where needed. The sintered member can be formed as a cap which is fitted onto the working tip with a silver paste sandwiched therebetween, a brazing filler metal ring is positioned between an abutment shoulder and the cap, flux applied to the joint and the cap brazed into place. A metal, cermet or ceramic coating sprayed on the outer surface of the core, except for the (masked) working tip end, is not wettable by solder. An Ag—Al—Cu alloy coating layer in the rearwardly-disposed cavity improves heat conduction from the heater therein.Type: GrantFiled: February 24, 2004Date of Patent: February 17, 2009Assignee: Hakko CorporationInventors: Takashi Nagase, Takashi Uetani, Yoshimoto Teraoka, Takanori Naito, Norihisa Sekimori, Masayuki Miyabe
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Publication number: 20080142688Abstract: It is an object of the invention to provide a reflection type optical detector including a detecting unit having a structure preventing outer shape dimensions of a light emitting portion and a light receiving portion from being increased, capable of being integrated by a small size and with a high accuracy and capable of being integrated simply.Type: ApplicationFiled: June 8, 2005Publication date: June 19, 2008Inventor: Takashi Nagase
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Patent number: 7056446Abstract: A method of easily manufacturing a nano-gap electrode by using a focused ion beam lithography includes a layer depositing step of depositing an electrode layer and a metal mask layer in this order on an insulating substrate, a mask pattern forming step of etching the metal mask layer by using the focused ion beam and thereby forming a mask pattern, a dry etching step of transferring a pattern to the electrode layer by dry etching, and a wet etching step of removing the metal mask layer by using a solution that selectively dissolves the metal mask layer compared to the electrode layer.Type: GrantFiled: September 16, 2003Date of Patent: June 6, 2006Assignee: Communications Research Laboratory, Independent Administrative InstitutionInventors: Takashi Nagase, Tohru Kubota, Shinro Mashiko
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Patent number: 7042211Abstract: A multirotation type encoder of the invention includes a first encoder 20 attached to a rotating shaft 11 of a rotating machine 10 for detecting an absolute value rotational angle within one rotation, and a second encoder for counting a multirotation amount of the rotating shaft 11 by using a speed reducing mechanism 30 by magnetic coupling and the second encoder 40 is constituted by a first magnetic gear 31 directly connected to the rotating shaft and magnetized in multiple poles and at least one second magnetic gear 32 arranged to be opposed thereto in noncontact and magnetized in multiple poles by a number of magnetic poles larger than that of the first magnetic gear 31 and is constituted to count a multirotation amount by detecting a rotational angle of the second magnetic gear by the second encoder.Type: GrantFiled: October 15, 2002Date of Patent: May 9, 2006Assignee: Kabushiki Kaisha Yaskawa DenkiInventors: Takefumi Kabashima, Kazunari Matsuzaki, Koji Uemura, Takashi Nagase
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Patent number: 7030339Abstract: A soldering iron tip having a copper or copper alloy core and a metal particle sintered member connected to the core to transfer heat therefrom to form a working soldering tip. The sintered member can be manufactured by powder metallurgy from a base material (iron, nickel and/or cobalt particles) and an additive (silicon, copper, silver, tin, boron and/or carbon particles) where needed. The sintered member can be formed as a cap which is fitted onto the working tip with a silver paste sandwiched therebetween, a brazing filler metal ring is positioned between an abutment shoulder and the cap, flux applied to the joint and the cap brazed into place. A metal, cermet or ceramic coating sprayed on the outer surface of the core, except for the (masked) working tip end, is not wettable by solder. An Ag—Al—Cu alloy coating layer in the rearwardly-disposed cavity improves heat conduction from the heater therein.Type: GrantFiled: November 21, 2003Date of Patent: April 18, 2006Assignee: Hakko CorporationInventors: Takashi Nagase, Takashi Uetani, Yoshimoto Teraoka, Takanori Naito, Norihisa Sekimori, Masayuki Miyabe
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Patent number: 6979514Abstract: A battery including an outer casing, positive and negative electrodes provided in the outer casing, and an electrolyte provided therebetween. The outer casing is electrically connected to one of the positive and negative electrodes to constitute one of electrode terminals. The other is connected to the other electrode terminal which is electrically insulated from the outer casing. At least one of the positive and negative electrodes and the electrode terminal are connected to each other through a collector, which includes a plate-shaped body section and a connecting piece extended in an almost vertical direction from an end of the body section. The body section or the connecting piece is provided with a bending guide section which can be bent in such a direction that the connecting piece approaches the body section.Type: GrantFiled: December 17, 2002Date of Patent: December 27, 2005Assignee: Sanyo Electric Co., Ltd.Inventors: Satoru Kometani, Takashi Nagase, Yoshihiro Masuda, Hideyuki Asanuma, Eiji Enishi, Toshiyuki Kondo
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Patent number: 6937008Abstract: A rotating angle detector (10) according to the invention comprises magnetic field generating means for rotating integrally with a detected member and uniformly generating a magnetic field in one direction perpendicularly to a rotating axis in a stationary state, and at least two magnetic sensors (41), (42), (43) and (44) provided to generate one sine wave for one rotation of the magnetic field generating means respectively, wherein input current terminals (61), (62), (63) and (64) of the magnetic sensor are connected in series. Moreover, it is also possible to employ such a structure that at least two signal differential amplifying means are arranged on a substrate provided with at least two magnetic sensors and there is provided a circuit wiring for causing an output sent from each of the magnetic sensors to pass through the signal differential amplifying means.Type: GrantFiled: August 14, 2003Date of Patent: August 30, 2005Assignee: Kabushiki Kaisha Yaskawa DenkiInventors: Kazunari Matsuzaki, Takashi Nagase
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Publication number: 20050011876Abstract: A soldering iron (and a desoldering iron) with a replaceable tip cap are herein disclosed. The replaceable tip cap is fitted on the forward heat-conducting core end of a soldering (or desoldering) iron heat assembly. Conductive paste, powder or a low melting temperature material such as solder, can be sandwiched between the tip cap and the forward end to improve heat conductivity therebetween. An assembly which allows for the easy removal and application of a replacement tip cap can include a sleeve with tightening bolt, a coil spring sleeve, or a slotted compressible sleeve. The tip cap can thus be replaced after it has worn out, and the heat assembly unit need not be replaced until it has burnt out.Type: ApplicationFiled: May 26, 2004Publication date: January 20, 2005Inventors: Takashi Uetani, Takashi Nagase, Hiroyuki Masaki
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Publication number: 20040246148Abstract: There is provided a multirotation type encoder which is small-sized, having nomechanical contact portion other than a bearing, having high reliability and long life and dispensing with interchange of a battery.Type: ApplicationFiled: April 16, 2004Publication date: December 9, 2004Inventors: Takefumi Kabashima, Kazunari Matsuzaki, Koji Uemura, Takashi Nagase
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Publication number: 20040226981Abstract: A soldering iron tip having a copper or copper alloy core and a metal particle sintered member connected to the core to transfer heat therefrom to form a working soldering tip. The sintered member can be manufactured by powder metallurgy from a base material (iron, nickel and/or cobalt particles) and an additive (silicon, copper, silver, tin, boron and/or carbon particles) where needed. The sintered member can be formed as a cap which is fitted onto the working tip with a silver paste sandwiched therebetween, a brazing filler metal ring is positioned between an abutment shoulder and the cap, flux applied to the joint and the cap brazed into place. A metal, cermet or ceramic coating sprayed on the outer surface of the core, except for the (masked) working tip end, is not wettable by solder. An Ag—Al—Cu alloy coating layer in the rearwardly-disposed cavity improves heat conduction from the heater therein.Type: ApplicationFiled: February 24, 2004Publication date: November 18, 2004Applicant: Hakko Corpotation, Japanese corporationInventors: Takashi Nagase, Takashi Uetani, Yoshitomo Teraoka, Takanori Naito, Masayuki Miyabe, Norihisa Sekimori
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Publication number: 20040226982Abstract: A soldering iron tip having a copper or copper alloy core and a metal particle sintered member connected to the core to transfer heat therefrom to form a working soldering tip. The sintered member can be manufactured by powder metallurgy from a base material (iron, nickel and/or cobalt particles) and an additive (silicon, copper, silver, tin, boron and/or carbon particles) where needed. The sintered member can be formed as a cap which is fitted onto the working tip with a silver paste sandwiched therebetween, a brazing filler metal ring is positioned between an abutment shoulder and the cap, flux applied to the joint and the cap brazed into place. A metal, cermet or ceramic coating sprayed on the outer surface of the core, except for the (masked) working tip end, is not wettable by solder. An Ag—Al—Cu alloy coating layer in the rearwardly-disposed cavity improves heat conduction from the heater therein.Type: ApplicationFiled: February 24, 2004Publication date: November 18, 2004Applicant: Hakko Corporation, Japanese corporationInventors: Takashi Nagase, Takashi Uetani, Yoshitomo Teraoka, Takanori Naito, Masayuki Miyabe, Norihisa Sekimori
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Publication number: 20040222206Abstract: A soldering iron tip having a copper or copper alloy core and a metal particle sintered member connected to the core to transfer heat therefrom to form a working soldering tip. The sintered member can be manufactured by powder metallurgy from a base material (iron, nickel and/or cobalt particles) and an additive (silicon, copper, silver, tin, boron and/or carbon particles) where needed. The sintered member can be formed as a cap which is fitted onto the working tip with a silver paste sandwiched therebetween, a brazing filler metal ring is positioned between an abutment shoulder and the cap, flux applied to the joint and the cap brazed into place. A metal, cermet or ceramic coating sprayed on the outer surface of the core, except for the (masked) working tip end, is not wettable by solder. An Ag—Al—Cu alloy coating layer in the rearwardly-disposed cavity improves heat conduction from the heater therein.Type: ApplicationFiled: November 21, 2003Publication date: November 11, 2004Applicant: Hakko Corporation, Japanese corporationInventors: Takashi Nagase, Takashi Uetani, Yoshitomo Teraoka, Takanori Naito, Norihisa Sekimori, Masayuki Miyabe
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Publication number: 20040161708Abstract: A method of easily manufacturing a nano-gap electrode by using a focused ion beam lithography includes a layer depositing step of depositing an electrode layer and a metal mask layer in this order on an insulating substrate, a mask pattern forming step of etching the metal mask layer by using the focused ion beam and thereby forming a mask pattern, a dry etching step of transferring a pattern to the electrode layer by dry etching, and a wet etching step of removing the metal mask layer by using a solution that selectively dissolves the metal mask layer compared to the electrode layer.Type: ApplicationFiled: September 16, 2003Publication date: August 19, 2004Applicant: Communications Research Laboratory, Independent Administrative InstitutionInventors: Takashi Nagase, Tohru Kubota, Shinro Mashiko
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Publication number: 20040150391Abstract: A rotating angle detector (10) according to the invention comprises magnetic field generating means for rotating integrally with a detected member and uniformly generating a magnetic field in one direction perpendicularly to a rotating axis in a stationary state, and at least two magnetic sensors (41), (42), (43) and (44) provided to generate one sine wave for one rotation of the magnetic field generating means respectively, wherein input current terminals (61), (62), (63) and (64) of the magnetic sensor are connected in series.Type: ApplicationFiled: August 14, 2003Publication date: August 5, 2004Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Kazunari Matsuzaki, Takashi Nagase
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Publication number: 20040141873Abstract: This invention provides solder that is substantially free of lead that minimizes corrosion from occurring in the soldering equipment such as the tip of the soldering iron and soldering dipping tank. Without substantial, if any, amount of lead in the solder, the solder does not expose lead into the environment. The solder composition also includes element(s) that extend the life of the soldering tip or other equipments associated with soldering. The solder composition may include Sn (tin) along with Co (cobalt) and Fe (iron). Tin may make up the most of the content in the solder composition. The two elements cobalt and iron substantially inhibit tin from corroding the iron, thereby substantially preventing the soldering iron tip and dipping solder tank from corroding. The composition of the solder may also include Ag (silver) to improve the mechanical strength and wettability of the solder.Type: ApplicationFiled: February 27, 2003Publication date: July 22, 2004Inventors: Tadashi Takemoto, Takashi Nagase, Takashi Uetani, Morio Yamazaki