Patents by Inventor Eiji Tsuji
Eiji Tsuji 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: 6538351Abstract: A rotating machine having a stator core and coolers for cooling a cooling medium which is circulated inside the machine by the rotation of a fan installed near a rotating axis of the rotating machine. The coolers being installed in a ventilation passage for the cooling medium and including at least one cooler installed in one ventilation passage extending from an exhaust side of the fan to a suction side of the fan via the stator core, and at least another cooler installed in another ventilation passage extending from the exhaust side of the fan in the one ventilation passage to an inside of an inner surface of the stator core.Type: GrantFiled: March 18, 2002Date of Patent: March 25, 2003Assignee: Hitachi, Ltd.Inventors: Akitomi Semba, Tadashi Sonobe, Takashi Watanabe, Yasuomi Yagi, Junji Sato, Shinsaku Hakuta, Hideaki Mori, Eiji Tsuji, Kenichi Hattori, Atsushi Ishihara
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Publication number: 20020101121Abstract: A rotating machine having a stator core and coolers for cooling a cooling medium which is circulated inside the machine by the rotation of a fan installed near a rotating axis of the rotating machine. The coolers being installed in a ventilation passage for the cooling medium and including at least one cooler installed in one ventilation passage extending from an exhaust side of the fan to a suction side of the fan via the stator core, and at least another cooler installed in another ventilation passage extending from the exhaust side of the fan in the one ventilation passage to an inside of an inner surface of the stator core.Type: ApplicationFiled: March 18, 2002Publication date: August 1, 2002Inventors: Akitomi Semba, Tadashi Sonobe, Takashi Watanabe, Yasuomi Yagi, Junji Sato, Shinsaku Hakuta, Hideaki Mori, Eiji Tsuji, Kenichi Hattori, Atsushi Ishihara
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Publication number: 20020047356Abstract: A brushless alternating-current generating apparatus having a brushless alternating-current generator, an alternating-current exciter coupled to the brushless alternating-current generator, and a field winding temperature measuring device for measuring a field winding temperature of the alternating-current generator. The field winding temperature measuring device has a voltage measuring device for measuring a field voltage of the brushless alternating-current generator, a current measuring device for measuring a current supplied to the alternating-current exciter, and a field winding temperature calculating unit for calculating the field winding temperature of the brushless alternating-current generator from measured signal values from these measuring devices.Type: ApplicationFiled: February 26, 2001Publication date: April 25, 2002Inventors: Hideo Tanahashi, Yasuhiro Yasaka, Ryoichi Shiobara, Eiji Tsuji, Atsushi Ishihara, Shigehiro Kayukawa
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Patent number: 6359351Abstract: A rotating machine having a stator core and being equipped with coolers for cooling a cooling medium which is circulated inside the machine by the rotation of a fan installed near a rotating axis of the rotating machine. The coolers are installed in a ventilation passage for the cooling medium and include a primary cooler installed in a primary ventilation passage extending from an exhaust side of the fan to a suction side of the fan via the stator core, and a secondary cooler installed in a secondary ventilation passage extending from the exhaust side of the fan in the primary ventilation passage to an inside of an inner surface of the stator core via the stator core.Type: GrantFiled: June 4, 2001Date of Patent: March 19, 2002Assignee: Hitachi, Ltd.Inventors: Akitomi Semba, Tadashi Sonobe, Takashi Watanabe, Yasuomi Yagi, Junji Sato, Shinsaku Hakuta, Hideaki Mori, Eiji Tsuji, Kenichi Hattori, Atsushi Ishihara
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Patent number: 6265795Abstract: A rotating machine having a core and being equipped with coolers for cooling a cooling medium which is circulated inside the machine by the rotation of a fan installed near the rotating axis. The coolers are installed in a ventilation passage for the cooling medium and comprise a primary cooler installed in a primary ventilation passage extending from the exhaust side of a fan installed near the rotating axis to the suction side of said fan via the core, and a secondary cooler installed in a secondary passage that is branched from the primary ventilation passage.Type: GrantFiled: June 5, 2000Date of Patent: July 24, 2001Assignee: Hitachi, LTDInventors: Akitomi Semba, Tadashi Sonobe, Takashi Watanabe, Yasuomi Yagi, Junji Sato, Shinsaku Hakuta, Hideaki Mori, Eiji Tsuji, Kenichi Hattori, Atsushi Ishihara
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Patent number: 6262501Abstract: A rotating machine equipped with coolers for cooling a cooling medium which is circulated inside the machine by the rotation of a fan installed on the rotating axis. The coolers includes two or more coolers installed in a ventilation passage for the cooling medium. At least part of the cooling medium cooled by one cooler is further cooled by another cooler.Type: GrantFiled: June 5, 2000Date of Patent: July 17, 2001Assignee: Hitachi, LTDInventors: Akitomi Semba, Tadashi Sonobe, Takashi Watanabe, Yasuomi Yaji, Junji Sato, Shinsaku Hakuta, Hideaki Mori, Eiji Tsuji, Kenichi Hattori, Atsushi Ishihara
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Patent number: 6262502Abstract: A rotating machine having a stator core and being equipped with coolers for cooling a cooling medium which is circulated inside the machine by the rotation of a fan installed near the rotating axis. The coolers are installed in a ventilation passage for the cooling medium and comprise a primary cooler installed in a primary ventilation passage extending from the exhaust side of a fan installed near the rotating axis to the suction side of the fan via the stator core, and a secondary cooler installed in a secondary ventilation passage extending from the exhaust side of the fan in the primary ventilation passage to the inside of the inner surface of the stator core via the stator core.Type: GrantFiled: June 5, 2000Date of Patent: July 17, 2001Assignee: Hitachi, LTDInventors: Akitomi Semba, Tadashi Sonobe, Takashi Watanabe, Yasuomi Yagi, Junji Sato, Shinsaku Hakuta, Hideaki Mori, Eiji Tsuji, Kenichi Hattori, Atsushi Ishihara
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Patent number: 6201323Abstract: In order to provide a rotating machine in which the temperature increase distribution inside the machine can be equalized, not only is a primary cooler installed in the primary ventilation passage that extends from the exhaust side of the fans and installed on the rotating axis to the suction side of the fans and via the core, but a secondary cooler is installed in the secondary ventilation passage that is branched from the primary ventilation passage, thus making it possible to further cool part of the cooling medium, which has once been cooled by the primary cooler, by means of the secondary cooler, that is, to cool the cooling medium by circulating it through the coolers twice.Type: GrantFiled: November 18, 1999Date of Patent: March 13, 2001Assignee: Hitachi, Ltd.Inventors: Akitomi Semba, Tadashi Sonobe, Takashi Watanabe, Yasuomi Yagi, Junji Sato, Shinsaku Hakuta, Hideaki Mori, Eiji Tsuji, Kenichi Hattori, Atsushi Ishihara
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Patent number: 6029677Abstract: A hair styling iron having an elongated barrel having a front end and a rear end, the barrel including a heat plate with a corrugated surface composed of a plurality of concavities and convexities arranged along a direction transverse to the length of the barrel and extending along the length of the barrel, the heat plate formed with a plurality of steam vents; a hand grip extending from the rear end of the barrel; a heater mounted in the barrel to heat the heat plate; a steam generator incorporated in the barrel to generate steam which is discharged from the steam vents; and a hair clamping member pivoted at a connection between the barrel and the hand grip for pivotal movement between a closed position of mating with the heat plate and an open position disengaged from the heat plate.Type: GrantFiled: November 18, 1998Date of Patent: February 29, 2000Assignee: Matsushita Electric Works, Ltd.Inventors: Yoshiyuki Nanba, Hisashi Kitamura, Eiji Tsuji
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Patent number: 5983903Abstract: A hair iron is provided which includes a hair curling body having an outer peripheral surface on which hairs are wound, a clip for holding the hairs between the inner surface of the clip and the outer peripheral surface of the hair curling body and a heater for heating the hair curling body. The clip is made of low heat conductive materials. A plurality of rib-shaped guards, which extend in a circumferential direction of the hair curling body, are provided at least on an area of the outer peripheral surface of the hair curling body other than the area facing the clip. The guards are made of low heat conductive materials. The guards are disposed at certain spaced intervals in an axial direction of the hair curling body.Type: GrantFiled: September 12, 1997Date of Patent: November 16, 1999Assignee: Matsushita Electric Works, Ltd.Inventors: Yoshiyuki Nanba, Kazuyasu Ikadai, Hisashi Kitamura, Eiji Tsuji, Hiroyuki Tagishi
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Patent number: 5226984Abstract: Fe-Cr-Ni-Al ferritic alloy capable of forming hot oxidation/corrosion resistive aluminum oxide scale in the surface thereof by exposure to oxidation environments at elevated temperatures. Due to the ferritic structure, the aluminum oxide scale is formed uniformly and densely to improve scale adherence, or prevent scale flaking. The mechanical properties of the ferritic alloy is considerably improved by incorporation of controlled amounts of Cr, Ni, and Al relative to each other, which are added to precipitate minute Ni-Al intermetallic compounds in the alloy matrix while retaining the ferritic structure. Such minute Ni-Al intermetallic compounds are thought to be responsible for improved mechanical properties, including high temperature strength, tensile strength, hardness and the like. Whereby, the alloy combine excellent hot oxidation/corrosion resistance and improved mechanical properties.Type: GrantFiled: January 8, 1992Date of Patent: July 13, 1993Assignee: Matsushita Electric Works, Ltd.Inventors: Tadashi Hamada, Shuji Yamada, Eiji Tsuji, Tomoyuki Mizukoshi
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Patent number: 5223694Abstract: A hair styling iron for selectively effecting hair straightening or curling includes a generally circular cross-section electrically heated barrel. A tongue is movable relative to the barrel for selectively clamping a strand of hair between the tongue and the peripheral surface of the barrel for curling hair wound therearound. The barrel comprises a first and second pipes each having a generally semi-circular cross section with a top rounded outer surface and a flat bottom outer surface. The pipes are movable relative to each other between a closed position where the flat bottom surfaces are kept in closed relation to each other and an open position where the bottom surfaces are spaced away from each other. In the closed position, a strand of hair can be held between the opposing flat bottom surfaces of the first and second pipes in order to substantially straighten or uncurl the hair. Thus, the hair styling iron can alone provides hair curling and straightening capabilities.Type: GrantFiled: January 27, 1992Date of Patent: June 29, 1993Assignee: Matsushita Electric Works, Ltd.Inventors: Eiji Tsuji, Hiroshi Nanba, Manabu Takeda, Katsunori Someya
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Patent number: 5089223Abstract: Fe-Cr-Ni-Al ferritic alloy capable of forming hot oxidation/corrosion resistive aluminum oxide scale in the surface thereof by exposure to oxidation environments at elevated temperatures. Due to the ferritic structure, the aluminum oxide scale is formed uniformly and densely to improve scale adherence, or prevent scale flaking. The mechanical properties of the ferritic alloy is considerably improved by incorporation of controlled amounts of Cr, Ni, and Al relative to each other, which are added to precipitate minute Ni-Al intermetallic compounds in the alloy matrix while retaining the ferritic structure. Such minute Ni-Al intermetallic compounds are thought to be responsible for improved mechanical properties, including high temperature strength, tensile strength, hardness and the like. Whereby, the alloy combine excellent hot oxidation/corrosion resistance and improved mechanical properties.Type: GrantFiled: October 29, 1990Date of Patent: February 18, 1992Assignees: Matsushital Electric Works, Ltd., Osaka PrefectureInventors: Tadashi Hamada, Shuji Yamada, Eiji Tsuji, Tomoyuki Mizukoshi
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Patent number: 4953574Abstract: A hair curler has a barrel with an exposed heating element and a clamping member which clamps hair to the heating element exposed on the barrel for providing tight curls. The heating element is in the form of a plurality of resistor segments extending lengthwise of the barrel and being spaced circumferentially around the barrel with the longitudinal ends thereof being connected. The resistor segments, which are mounted at one circumferential portion of the barrel in closely adjacent relation to the clamping member, are arranged to give off a greater amount of heat than the remaining resistor segments mounted at the other circumferential portion of the barrel located away from the clamping member.Type: GrantFiled: May 24, 1989Date of Patent: September 4, 1990Assignee: Matsushita Electric Works, Ltd.Inventors: Eiji Tsuji, Hideharu Nakano
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Patent number: 4936027Abstract: A hair dryer and steamer combination includes a handle housing mounting a fan blower producing a flow of air and a hair brush attachment having a hair engaging surface for seizing the hair to be styled. Included in the hair brush attachment is a heater which heats the water supplied from a water supplying tank at the end of the attachment to generate the steam. The attachment has its interior divided into an air flow chamber open rearwardly into the handle housing and a steam chamber accommodating the steam heater. The air flow chamber is provided with a number of air vents through which the air flow from the handle housing is discharged outwardly for drying the hair in engagement with the hair engaging surface. The steam chamber has a number of steam vents for discharging the steam outwardly for moistening the hair in engagement with the hair engaging surface.Type: GrantFiled: June 30, 1988Date of Patent: June 26, 1990Assignee: Matsushita Electric Works, Ltd.Inventor: Eiji Tsuji
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Patent number: 4926541Abstract: A method of assembling a wound rotor of a vertical type adjustable speed electric rotating machine at a power house of a hydroelectric power plant, with the method including a layer of a rotor body on its side into a pit in the power house with a top surface of an outer circumference of the rotor body extending from the pit to a height sufficient to facilitate a carrying out of field coiling assembling operations by working personnel from a foundation of the power house whereby it is possible to limit an increase in the height of the power house to a sum of an axial length of the assembled rotor body and a height of a crane lifting jig.Type: GrantFiled: August 10, 1989Date of Patent: May 22, 1990Assignee: Hitachi, Ltd.Inventors: Shinsaku Hakuta, Yasuhiro Yasaka, Osamu Nagura, Eiji Tsuji, Makoto Suzuki, Hirotaka Akagawa
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Patent number: 4743735Abstract: A portable electric battery operated hair curler having a handle detachable from a curling barrel provided with an electric heating element. The handle contains rechargeable batteries and a recharger, and has a first set of electrical connectors at its front end for mating with a set of electrical connectors at the back end of the curling barrel. The handle further includes a second pivotally mounted electrical connection means in the front end of the handle connected to the battery charger for connecting the charger to an external power source. The pivoted second connection is accessible for use only when the barrel is detached from the handle and is then movable from a stored position in the handle to a position projecting from one side of the handle for connection to the external power source.Type: GrantFiled: July 15, 1986Date of Patent: May 10, 1988Assignee: Matsushita Electric Works, Ltd.Inventors: Yoshinori Abura, Eiji Tsuji, Kenji Okuyama, Shuhei Ochi
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Patent number: 4676152Abstract: An apparatus for using hot humid air to prevent the spread of fruit fly infestation in fruits and vegetables. The apparatus includes a treating room, an air chamber located above the treating room and communicating therewith, a temperature and humidity regulator, and a ventilation arrangement. The apparatus allows accurate and uniform control of temperature and humidity, thereby minimizing damage to the treated fruits and vegetables.Type: GrantFiled: December 3, 1985Date of Patent: June 30, 1987Assignees: Takenaka Komuten Co., Starlanes Corp.Inventors: Eiji Tsuji, Norio Igawa, Hiroshi Tabuchi, Tomoji Horiike
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Patent number: 4668585Abstract: An Fe-Cr-Al type implant alloy for medical treatment wherein the alloy consists essentially of, by weight, 20-32 % chromium, 0.5-5.0% aluminum, 0.5-4.0% molybdenum, 0.05-0.5% M (wherein M represents at least one kind selected from zirconium and hafnium), and the remainder being substantially iron, wherein the alloy includes an oxide film on the surface, the film being composed substantially of .alpha.-Al.sub.2 O.sub.3, and a method of making the alloy implant.Type: GrantFiled: June 5, 1985Date of Patent: May 26, 1987Assignee: Osaka Prefecture, Horonobu Oonishi and Kyocera CorporationInventors: Eiji Tsuji, Hirobumi Okabe, Hideo Ike, Fumihiro Uratani, Takashi Ota, Hiroshi Kaneda, Yuko Hanatate, Tadashi Hamada, Hironobu Oonishi
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Patent number: 4641010Abstract: An electric hair curler comprises a handle and a barrel connected thereto for winding thereabout the hair. The barrel is provided with an electric heater for curling the hair wound on the barrel. The heater includes a plurality of resistor elements in the form of strips extending along the length of the barrel in generally parallel relationship with one another and being electrically connected in series by a corresponding number of bridging segments. The heater thus constructed is mounted on the barrel with the resistor elements thereof being exposed on the outer surface of the barrel in circumferentially spaced relationship with one another around the barrel, so that each of the resistor elements is in direct heat transfer contact with the hair to be wound on the barrel, thus greatly reducing the heat loss to assure effective heat transfer from the heater to the hair.Type: GrantFiled: February 4, 1985Date of Patent: February 3, 1987Assignee: Matsushita Electric Works, Ltd.Inventors: Yoshinori Abura, Eiji Tsuji, Kenji Okuyama, Shuhei Ochi