Patents by Inventor Yasuaki Tsuji
Yasuaki 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: 11879065Abstract: The actinic radiation curable inkjet ink of the present invention includes an actinic radiation polymerizable compound, a crystalline polyester resin, and a gelling agent selected from the group consisting of aliphatic ester-based wax, aliphatic ketone-based wax, paraffin wax and microcrystalline wax. The image forming method of the present invention includes ejecting the actinic radiation curable inkjet ink heated to 40 to 120° C. through an inkjet head to land the actinic radiation curable inkjet ink ejected, onto a surface of a recording medium or an intermediate transfer member whose surface temperature is 60° C. or less, and irradiating the actinic radiation curable inkjet ink landed with actinic radiation.Type: GrantFiled: November 21, 2019Date of Patent: January 23, 2024Assignee: KONICA MINOLTA, INC.Inventors: Kouji Izawa, Yasuaki Tsuji
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Patent number: 11578223Abstract: An actinic radiation-curable inkjet ink according to the present invention contains an actinic radiation polymerizable compound and a linear styrene (meth)acrylic acid ester copolymer dissolved therein. The styrene (meth)acrylic acid ester copolymer has a softening point of 30 to 120° C., and a content of the styrene (meth)acrylic acid ester copolymer is 1 to 50 wt % based on a total mass of the actinic radiation-curable inkjet ink.Type: GrantFiled: December 24, 2019Date of Patent: February 14, 2023Assignee: KONICA MINOLTA, INC.Inventors: Yasuaki Tsuji, Kouji Izawa
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Publication number: 20200231831Abstract: An actinic radiation-curable inkjet ink according to the present invention contains an actinic radiation polymerizable compound and a linear styrene (meth)acrylic acid ester copolymer dissolved therein. The styrene (meth)acrylic acid ester copolymer has a softening point of 30 to 120° C., and a content of the styrene (meth)acrylic acid ester copolymer is 1 to 50 wt % based on a total mass of the actinic radiation-curable inkjet ink.Type: ApplicationFiled: December 24, 2019Publication date: July 23, 2020Inventors: Yasuaki Tsuji, Kouji Izawa
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Publication number: 20200190343Abstract: The actinic radiation curable inkjet ink of the present invention includes an actinic radiation polymerizable compound, a crystalline polyester resin, and a gelling agent selected from the group consisting of aliphatic ester-based wax, aliphatic ketone-based wax, paraffin wax and microcrystalline wax. The image forming method of the present invention includes ejecting the actinic radiation curable inkjet ink heated to 40 to 120° C. through an inkjet head to land the actinic radiation curable inkjet ink ejected, onto a surface of a recording medium or an intermediate transfer member whose surface temperature is 60° C. or less, and irradiating the actinic radiation curable inkjet ink landed with actinic radiation.Type: ApplicationFiled: November 21, 2019Publication date: June 18, 2020Inventors: Kouji Izawa, Yasuaki Tsuji
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Patent number: 8371977Abstract: A transmission ratio variable mechanism is provided with: an input member and an output member capable of rotation about a first axis; an inner race for differentially rotatably coupling to each member; an outer race for rotatably supporting the inner race via a rolling element; and a transmission ratio variable mechanism-use electric motor for rotation-driving the outer race. A second axis which is a center line of the inner race and the outer race is inclined to the first axis. A first concave-convex engaging section for engaging one side end surface of the inner race and a power transmission surface of the input member corresponding to the one end surface are arranged. There is provided a second concave-convex engaging section for engaging the other end surface of the inner race and a power transmission surface of the output member.Type: GrantFiled: October 17, 2008Date of Patent: February 12, 2013Assignee: JTEKT CorporationInventors: Akihiko Shiina, Masaki Nakaoka, Yasuaki Tsuji, Yasuhiro Saitou, Sunao Tsuchimochi, Hidetaka Otsuki, Tomonari Yamakawa
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Patent number: 8181734Abstract: A motor vehicle steering system includes a transmission ratio variable mechanism capable of changing a transmission ratio, and a steering-assist-force imparting mechanism. The transmission ratio variable mechanism is provided with an input member and an output member capable of rotation about a first axis, a first bearing ring for differentially rotatably coupling to each of the input and output member, a second bearing ring for rotatably supporting the first bearing ring via a rolling element, and an electric motor for rotation-driving the second bearing ring. A second axis that is a center line of the first bearing ring and the second bearing ring is inclined relative to the first axis.Type: GrantFiled: October 17, 2008Date of Patent: May 22, 2012Assignee: JTEKT CorporationInventors: Akihiko Shiina, Masaki Nakaoka, Yasuaki Tsuji, Yasuhiro Saitou, Sunao Tsuchimochi, Hidetaka Otsuki, Tomonari Yamakawa
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Patent number: 8047325Abstract: A vehicle steering system including a transmission ratio variable mechanism that has a first shaft connected to a steering member and a second shaft connected to a turning mechanism, coupled coaxially to each other, and a transmission ratio variable mechanism motor disposed coaxially with the first and second shafts for driving the transmission ratio variable mechanism. The transmission ratio variable mechanism motor includes a tubular rotor, and an accommodation space is defined on the inner side in the radial direction of the tubular rotor. At least one of sensors is disposed inside the accommodation space.Type: GrantFiled: December 19, 2008Date of Patent: November 1, 2011Assignee: JTEKT CorporationInventors: Yasuhiro Saitou, Hidetaka Otsuki, Yasuaki Tsuji
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Patent number: 7896983Abstract: In a method of manufacturing a hollow stabilizer, a pipe compressing step of compressing an electroseamed pipe in a temperature range of a hot state or a warm state so as to make a rate of a thickness with respect to an outer diameter between 18 and 35% is performed, and a forming step of forming the compressed electroseamed pipe in a stabilizer shape in a cold state is executed. Next, a step of applying a heat treatment to a half-finished stabilizer is performed, a shot peening step of impacting a shot on the half-finished stabilizer is performed, and a step of coating the half-finished stabilizer is performed.Type: GrantFiled: May 9, 2006Date of Patent: March 1, 2011Assignee: NHK Spring Co., Ltd.Inventors: Hiroshi Koyama, Koichi Tamatsu, Masato Sugawara, Jun Umeno, Hiroshi Machida, Hiroshi Masuya, Fumiaki Kimura, Yasuaki Tsuji, Akihiro Katsuya, Takahiro Nakamura
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Publication number: 20100224436Abstract: A motor vehicle steering system includes a transmission ratio variable mechanism capable of changing a transmission ratio, and a steering-assist-force imparting mechanism. The transmission ratio variable mechanism is provided with an input member and an output member capable of rotation about a first axis, a first bearing ring for differentially rotatably coupling to each of the input and output member, a second bearing ring for rotatably supporting the first bearing ring via a rolling element, and an electric motor for rotation-driving the second bearing ring. A second axis that is a center line of the first bearing ring and the second bearing ring is inclined relative to the first axis.Type: ApplicationFiled: October 17, 2008Publication date: September 9, 2010Applicant: JTEKT CorporationInventors: Akihiko Shiina, Masaki Nakaoka, Yasuaki Tsuji, Yasuhiro Saitou, Sunao Tsuchimochi, Hidetaka Otsuki, Tomonari Yamakawa
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Publication number: 20100218638Abstract: A transmission ratio variable mechanism is provided with: an input member and an output member capable of rotation about a first axis; an inner race for differentially rotatably coupling to each member; an outer race for rotatably supporting the inner race via a rolling element; and a transmission ratio variable mechanism-use electric motor for rotation-driving the outer race. A second axis which is a center line of the inner race and the outer race is inclined to the first axis. A first concave-convex engaging section for engaging one side end surface of the inner race and a power transmission surface of the input member corresponding to the one end surface are arranged. There is provided a second concave-convex engaging section for engaging the other end surface of the inner race and a power transmission surface of the output member.Type: ApplicationFiled: October 17, 2008Publication date: September 2, 2010Applicant: JTEKT CorporationInventors: Akihiko Shiina, Masaki Nakaoka, Yasuaki Tsuji, Yasuhiro Saitou, Sunao Tsuchimochi, Hidetaka Otsuki, Tomonari Yamakawa
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Publication number: 20070209860Abstract: A motor is provided with a rotor of which an inner portion made from a material having a lower density than an outer portion is fitted inside the outer portion around whose outer surface magnets are fixed; wherein the inner portion is shrink fitted or pressure fitted inside the outer portion. The rotor is manufactured by a simple process without the need to keep the rotor at high temperature for a set period of time as in the case of sinter bonding. A plurality of cut out holes is formed in the inner portion to make the rotor more lightweight.Type: ApplicationFiled: March 8, 2007Publication date: September 13, 2007Inventor: Yasuaki Tsuji
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Publication number: 20070176507Abstract: A motor with a rearranged bearing configuration for reducing an axial length, hence dimensions thereof, is to be provided. In a motor including a stator fixed to an inner circumferential wall of a housing, a rotating shaft rotatably supported by the housing via bearings, and a rotor fixed to the rotating shaft, the rotor includes a disk-shaped portion disposed coaxially with the rotating shaft and a cylindrical portion extending parallel to the rotating shaft from a circumferential edge of the disk-shaped portion, such that the rotor constitutes a cylindrical shape with the disk-shaped portion closing an end portion. Locating a portion of the bearing and of a rotation detector inside the cylindrical portion of the rotor allows reducing the axial length of the motor.Type: ApplicationFiled: December 28, 2006Publication date: August 2, 2007Applicant: JTEKT CorporationInventor: Yasuaki Tsuji
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Publication number: 20060200990Abstract: In a method of manufacturing a hollow stabilizer, a pipe compressing step of compressing an electroseamed pipe in a temperature range of a hot state or a warm state so as to make a rate of a thickness with respect to an outer diameter between 18 and 35% is performed, and a forming step of forming the compressed electroseamed pipe in a stabilizer shape in a cold state is executed. Next, a step of applying a heat treatment to a half-finished stabilizer is performed, a shot peening step of impacting a shot on the half-finished stabilizer is performed, and a step of coating the half-finished stabilizer is performed.Type: ApplicationFiled: May 9, 2006Publication date: September 14, 2006Inventors: Hiroshi Koyama, Koichi Tamatsu, Masato Sugawara, Jun Umeno, Hiroshi Machida, Hiroshi Masuya, Fumiaki Kimura, Yasuaki Tsuji, Akihiro Katsuya, Takahiro Nakamura
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Publication number: 20050277047Abstract: A toner containing a copolymer containing an amine or an ammonium slat in the outer layer of the toner particle, and a positively chargeable developer containing the toner are disclosed. An image forming method to develop an electrostatic latent image employing the toner or the developer is also disclosed.Type: ApplicationFiled: May 31, 2005Publication date: December 15, 2005Inventor: Yasuaki Tsuji
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Publication number: 20020170177Abstract: In a method of manufacturing a hollow stabilizer, a pipe compressing step of compressing an electroseamed pipe in a temperature range of a hot state or a warm state so as to make a rate of a thickness with respect to an outer diameter between 18 and 35% is performed, and a forming step of forming the compressed electroseamed pipe in a stabilizer shape in a cold state is executed. Next, a step of applying a heat treatment to a half-finished stabilizer is performed, a shot peening step of impacting a shot on the half-finished stabilizer is performed, and a step of coating the half-finished stabilizer is performed.Type: ApplicationFiled: March 7, 2002Publication date: November 21, 2002Inventors: Hiroshi Koyama, Koichi Tamatsu, Masato Sugawara, Jun Umeno, Hiroshi Machida, Hiroshi Masuya, Fumiaki Kimura, Yasuaki Tsuji, Akihiro Katsuya, Takahiro Nakamura
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Patent number: 6370349Abstract: A cylindrical toner storing container that engages with a rotation transmitting member of a developing device provided in an image forming apparatus to rotate around the rotation axis integrally with the rotation transmitting member and thereby supplies or replenishes toner to the developing device. The toner storing container has a cylindrical base body that has a toner outlet opening in the vicinity of the rotation axis on one end, the cylindrical base body has on the inner surface thereof a protruded spiral ridge, and the number of the spiral ridge on a cross section of the cylindrical base body is increased as the cross section nears the toner outlet opening.Type: GrantFiled: December 27, 2000Date of Patent: April 9, 2002Assignee: Konica CorporationInventors: Yasuaki Tsuji, Masahiro Yoshino, Tatsuo Nakanishi
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Patent number: 6298885Abstract: A powder accommodating container for accommodating powder includes: a flexible bag having an opening, capable of storing the powder; a protecting member for enclosing at least part of the flexible bag, wherein the protecting member is capable of being transformed; and a cover mounted on the protecting member, for opening and closing the opening.Type: GrantFiled: February 15, 2000Date of Patent: October 9, 2001Assignee: Konica CorporationInventors: Masahiro Yoshino, Tatsuo Nakanishi, Yasuaki Tsuji
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Publication number: 20010008593Abstract: A cynlindrical toner storing container that engages with a rotation transmitting memebre of a developing device provided in an image forming apparatus to rotate around the rotation axis integrally with the rotation transmitting member and thereby supplies or replenishes toner to the developing device. The toner storing container has a cylindrical base body that has a toner outlet opening in the vicinity of the rotation axis on one end, the cylindrical base body has on the inner surface thereof a protruded spiral ridge, and the number of the spiral ridges on a cross section of the cylindrical base body is increased as the cross section nears the toner outlet opening.Type: ApplicationFiled: December 27, 2000Publication date: July 19, 2001Inventors: Yasuaki Tsuji, Masahiro Yoshino, Tatsuo Nakanishi
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Patent number: D442986Type: GrantFiled: June 27, 2000Date of Patent: May 29, 2001Assignee: Konica CorporationInventors: Yasuaki Tsuji, Tatsuo Nakanishi, Masahiro Yoshino
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Patent number: D450081Type: GrantFiled: June 27, 2000Date of Patent: November 6, 2001Assignee: Konica CorporationInventors: Yasuaki Tsuji, Tatsuo Nakanishi, Masahiro Yoshino