Patents by Inventor Mitsuru Hasegawa
Mitsuru Hasegawa 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: 20240116113Abstract: An insert of the present disclosure includes a first surface, a second surface connecting to the first surface, and a cutting edge located on at least a part of a ridgeline between the first surface and the second surface. The first surface includes, at a position away from the ridgeline, a groove extending from a first end part closest to the cutting edge to a second end part farthest away from the cutting edge. The groove includes an opening located in the first surface, and a bottom surface. The groove includes, at a position closer to the first end part than a half of a groove length, a first groove part where a groove depth increases as going from the second end part toward the first end part, and a second groove part where the groove depth decreases as going from the second end part toward the first end part. The first groove part is located closer to the second end part than the second groove part. A cutting tool of the present disclosure includes the insert.Type: ApplicationFiled: October 28, 2021Publication date: April 11, 2024Inventor: Mitsuru HASEGAWA
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Publication number: 20240066606Abstract: An insert may include a first surface, a second surface, a third surface located on a side opposite to the first surface, a cutting edge located on a ridgeline between the first surface and the second surface, and a convex part located more inside the first surface than the cutting edge. The first surface may include a groove extending from a first end part closest to the cutting edge to a second end part. The groove may include an opening located in the first surface, and a bottom surface. An imaginary plane which is orthogonal to a central axis and is located between the first surface and the third surface may be a reference plane, the bottom surface may include an inclined portion inclined so as to come closer to the reference plane as going toward the first end part in a breaker region.Type: ApplicationFiled: October 28, 2021Publication date: February 29, 2024Inventor: Mitsuru HASEGAWA
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Patent number: 11897666Abstract: A package includes a first side, a second side and a hinge. As the first side and the second side pivot around the hinge, the first side and the second side make transition between a closed state and an opened state. The first side includes a first fitting portion in a projecting shape, a rigid portion provided in a partial section on a line that goes around the first fitting portion, and a first weak portion provided in a remaining section on the line that goes around the first fitting portion and being lower in rigidity than the rigid portion. The second side includes a second fitting portion in a recessed shape and fitted to the first fitting portion in the closed state and a second weak portion provided on a line that goes around the second fitting portion and being lower in rigidity than the rigid portion.Type: GrantFiled: September 27, 2019Date of Patent: February 13, 2024Assignee: NIPRO CORPORATIONInventor: Mitsuru Hasegawa
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Publication number: 20230364345Abstract: A pre-filled syringe includes a tubular container, a front end gasket, a rear end gasket, an intermediate gasket, and a plunger. The tubular container has an inner peripheral surface, a protruding inner side surface, and a receiving surface. A groove is formed in an outer peripheral surface of the intermediate gasket. The plunger has a connection portion, a pushing portion, and a guide rib. The protruding inner side surface is formed at a position facing the pushing portion in a pushing completion state. The guide rib is provided with a recess. A rear end portion of the recess is located rearward with respect to a rear end portion of the protruding inner side surface in the pushing completion state.Type: ApplicationFiled: September 10, 2021Publication date: November 16, 2023Applicant: NIPRO CORPORATIONInventors: Ryo OGINO, Mitsuru HASEGAWA
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Publication number: 20230338661Abstract: A pre-filled syringe includes a tubular container, a front end gasket, a rear end gasket, an intermediate gasket, a medicine, a liquid medicine, and a plunger. The tubular container has a barrel and a nozzle portion. The barrel has an inner peripheral surface and a protruding inner side surface. A groove is formed in an outer peripheral surface of the intermediate gasket. The front end gasket has a rear-end pressure-contact portion. The nozzle portion has an accommodation portion. The accommodation portion has a bottom wall, a peripheral wall, and a supporting portion. The rear-end pressure-contact portion is in pressure contact with the inner peripheral surface of the barrel in an abutment state in which the liquid medicine is introduced in the front chamber and the front end portion of the front end gasket is in abutment with the supporting portion.Type: ApplicationFiled: September 10, 2021Publication date: October 26, 2023Applicant: NIPRO CORPORATIONInventors: Ryo OGINO, Mitsuru HASEGAWA, Yuma SHIRAISHI
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Publication number: 20230304132Abstract: Provided are: a wear-resistant member using a Cr-based alloy material in which the cost can be reduced as compared with a Co-based alloy material and has wear resistance superior to that of the conventional Co-based alloy material; and a mechanical device using the wear-resistant member. The present invention is a wear-resistant member using a Cr-based alloy material, in which the Cr-based alloy material includes: more than 40 mass % and 65 mass % or less of Cr; 15 mass % or more and 40 mass % or less of Ni; more than 0 mass % and 30 mass % or less of Fe; 5 mass % or more and 16 mass % or less of Nb; 0.1 mass % or more and 0.9 mass % or less of Ti; 0.6 mass % or more and 2.5 mass % or less of C; 2 mass % or less of Mn; and impurities, and in which a mass ratio Ti/Nb of the Nb and the Ti is 0.063 or less.Type: ApplicationFiled: June 9, 2021Publication date: September 28, 2023Applicant: Hitachi, Ltd.Inventors: Mitsuru HASEGAWA, Tomonori KIMURA, Masafumi NOUJIMA
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Patent number: 11714368Abstract: An image forming apparatus includes a heating rotary member, a pressure rotary member, a nip portion formed by the rotary members, a temperature adjustment control section controlling a temperature of the heating rotary member to a target temperature, a cleaning web removing toner adhering to the heating rotary member, and a controller selectively executing one of a cleaning mode and a non-cleaning mode. A first basis weight and a second basis weight greater than the first predetermined basis weight are set, in a job that mixedly uses recording media with the first and second basis weights. When the controller executes the non-cleaning mode, the temperature adjustment control section sets a target temperature of a recording medium with a basis weight less than or equal to the first basis weight to a temperature lower than a target temperature of the recording medium in the cleaning mode.Type: GrantFiled: March 28, 2022Date of Patent: August 1, 2023Assignee: Canon Kabushiki KaishaInventors: Mitsuru Hasegawa, Hiroki Kawai, Ayano Ogata, Yasuharu Toratani, Suguru Takeuchi, Youichi Chikugo, Hidekazu Tatezawa, Yutaro Tsuno, Kenichi Tanaka, Rikiya Takemasa
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Publication number: 20230159233Abstract: A package includes a first side, a second side and a hinge. As the first side and the second side pivot around the hinge, the first side and the second side make transition between a closed state and an opened state. The first side includes a first fitting portion in a projecting shape, a rigid portion provided in a partial section on a line that goes around the first fitting portion, and a first weak portion provided in a remaining section on the line that goes around the first fitting portion and being lower in rigidity than the rigid portion. The second side includes a second fitting portion in a recessed shape and fitted to the first fitting portion in the closed state and a second weak portion provided on a line that goes around the second fitting portion and being lower in rigidity than the rigid portion.Type: ApplicationFiled: September 27, 2019Publication date: May 25, 2023Applicant: NIPRO CORPORATIONInventor: Mitsuru HASEGAWA
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Publication number: 20220308508Abstract: An image forming apparatus includes a heating rotary member, a pressure rotary member, a nip portion formed by the rotary members, a temperature adjustment control section controlling a temperature of the heating rotary member to a target temperature, a cleaning web removing toner adhering to the heating rotary member, and a controller selectively executing one of a cleaning mode and a non-cleaning mode. A first basis weight and a second basis weight greater than the first predetermined basis weight are set, in a job that mixedly uses recording media with the first and second basis weights. When the controller executes the non-cleaning mode, the temperature adjustment control section sets a target temperature of a recording medium with a basis weight less than or equal to the first basis weight to a temperature lower than a target temperature of the recording medium in the cleaning mode.Type: ApplicationFiled: March 28, 2022Publication date: September 29, 2022Inventors: Mitsuru Hasegawa, Hiroki Kawai, Ayano Ogata, Yasuharu Toratani, Suguru Takeuchi, Youichi Chikugo, Hidekazu Tatezawa, Yutaro Tsuno, Kenichi Tanaka, Rikiya Takemasa
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Publication number: 20220143715Abstract: An insert includes a base which includes a first surface, a second surface connecting to the first surface, and a cutting edge located on at least a part of a ridgeline of the first surface and the second surface. The first surface includes a plurality of grooves located at a position away from the ridgeline and extended at an angle of 20-90° relative to the ridgeline. The grooves are away from the ridgeline in a range of 40-700 ?m. A width W of the grooves is 50-700 ?m, and a depth D of the grooves is 20-700 ?m. Spacing S between the grooves adjacent to each other is 50-700 ?m. A cutting tool includes a holder, which has a length extending from a first end to a second end and includes a pocket located on a side of the first end, and the insert is located in the pocket.Type: ApplicationFiled: March 12, 2020Publication date: May 12, 2022Inventor: Mitsuru HASEGAWA
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Publication number: 20220126375Abstract: An insert includes a base. The base includes first and second surfaces, and a cutting edge on at least a part of a ridgeline of the first and second surfaces. The first surface includes a groove away from the ridgeline and at an angle ?1 of 20-90° relative to the ridgeline. The groove extends from a first end part closest to the cutting edge to a second end part most away from the cutting edge. The groove includes an opening and a bottom surface. An angle ?2 formed by the bottom surface and a raised surface extended from the bottom surface toward the first end part is 95-135°. A cutting tool includes a holder, which has a length extending from a first end to a second end and includes a pocket located on a side of the first end, and the insert located in the pocket.Type: ApplicationFiled: March 12, 2020Publication date: April 28, 2022Inventor: Mitsuru HASEGAWA
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Patent number: 11300906Abstract: A fixing device for fixing a toner image on a sheet includes a rotatable fixing belt; a heating roller wherein the belt is stretched and entrained around the heating roller to heat the belt; a pressing pad of resin material provided inside of the belt; a rotatable pressing member contacting an outer peripheral surface of the belt and pressing against the pad through the belt to form a nip configured to nip and feed the sheet; a supporting metal stay supporting the pad and including a planar bottom surface faced to the pad; and projected portions integrally molded with the pad and provided along a widthwise direction of the pad, the projected portions projecting and contacting to the bottom surface such that the pad is supported by the stay. A contact area between the projected portions and the bottom surface is not less than 5% and not more than 40% of the area of the bottom surface.Type: GrantFiled: December 16, 2020Date of Patent: April 12, 2022Assignee: Canon Kabushiki KaishaInventors: Rikiya Takemasa, Hidekazu Tatezawa, Yutaro Tsuno, Kenichi Tanaka, Youichi Chikugo, Mitsuru Hasegawa, Hiroki Kawai, Suguru Takeuchi, Ayano Ogata, Yasuharu Toratani
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Patent number: 11300904Abstract: A fixing apparatus includes a heating roller including a plurality of halogen heaters whose number is three or more and a driving-force transmission member disposed on one end portion of the heating roller and configured to transmit rotational force that rotates the heating roller. The plurality of halogen heaters whose number is three or more includes at least one asymmetric halogen heater in which an amount of heat generated from one end side on which the driving-force transmission member is provided is larger than an amount of heat generated from another end side, and in which heat generation distribution is asymmetric with respect to a center of a heat generating portion in a longitudinal direction, and at least one symmetric halogen heater in which heat generation distribution is symmetric with respect to a center of a heat generating portion in a longitudinal direction, and the number of symmetric halogen heaters is larger than the number of asymmetric halogen heaters.Type: GrantFiled: May 26, 2021Date of Patent: April 12, 2022Assignee: Canon Kabushiki KaishaInventors: Hiroki Kawai, Mitsuru Hasegawa, Ayano Ogata, Yasuharu Toratani
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Patent number: 11294313Abstract: An image forming apparatus includes a heater, heating roller heated by the heater and a fixing belt heated by the heating roller. A thermistor detects a temperature of the fixing belt at an area where the belt is stretched by the heating roller. When a CPU receives a signal which instructs the stop of rotation of the fixing belt, the CPU continues rotation of the fixing belt until the detected temperature detected by the thermistor decreases a predetermined temperature in a case in which the detected temperature is higher than the predetermined temperature.Type: GrantFiled: March 29, 2021Date of Patent: April 5, 2022Assignee: Canon Kabushiki KaishaInventors: Mitsuru Hasegawa, Hiroki Kawai, Yasuharu Toratani, Ayano Ogata
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Patent number: 11281141Abstract: An image forming apparatus includes an endless rotatable belt, a rotary pressing member, a pressing member, a driving unit, a heating roller, a temperature detection member, and a control unit. The rotary pressing member is configured to form a nip portion between the rotary pressing member and the belt, the nip portion being a portion in which a toner image borne by a recording material is fixed to the recording material while the recording material is nipped and conveyed. The control unit is configured to control the driving unit such that the driving unit does not start to rotate the belt during a period of time for a preparatory operation if a temperature of the heating roller is higher than a predetermined temperature, wherein the preparatory operation is an operation performed for enabling image formation after an error or a jam is handled.Type: GrantFiled: May 18, 2021Date of Patent: March 22, 2022Assignee: Canon Kabushiki KaishaInventors: Yasuharu Toratani, Mitsuru Hasegawa, Hiroki Kawai, Ayano Ogata
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Patent number: 11269272Abstract: A fixing device includes a rotatable fixing belt, a pad, a rotatable pressing member, a pressing member driving source, an auxiliary driving roller, and a transmission mechanism for transmitting a driving force from the pressing member driving source to the auxiliary driving roller, wherein a peripheral speed of the auxiliary driving roller is faster than a peripheral speed of the pressing member, and a steering roller provided so as to stretch the fixing belt at the inner surface of the fixing belt in a position downstream of the auxiliary driving roller and upstream the pad with respect to a rotational direction of the fixing belt. The steering roller adjusts a position of the fixing belt with respect to a widthwise direction of the fixing belt by inclining the fixing belt so as to be positioned within a predetermined range.Type: GrantFiled: November 10, 2020Date of Patent: March 8, 2022Assignee: Canon Kabushiki KaishaInventors: Hidekazu Tatezawa, Youichi Chikugo, Rikiya Takemasa, Kenichi Tanaka, Yutaro Tsuno, Mitsuru Hasegawa, Suguru Takeuchi, Hiroki Kawai, Yasuharu Toratani, Ayano Ogata
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Patent number: 11194275Abstract: A toner image fixing device include a fixing belt; a heating roller training the belt around; a pressing pad of resin material provided inside the belt; a rotatable pressing member contacting the belt and pressing against the pad through the belt to form a nip for nipping and feeding the sheet; a supporting stay supporting the pad and including a surface contacting the pad, one of the pad and the stay being provided with a projection, and the other being provided with a recess engaged with the projection at an engaging position; and a separation plate provided without contact to the belt at a position opposed to the pad downstream of the nip in the sheet feeding direction. A distance between the engaging position and a downstream end of the pad is 0-35% of a length of the pad measured along the feeding direction.Type: GrantFiled: December 16, 2020Date of Patent: December 7, 2021Assignee: Canon Kabushiki KaishaInventors: Rikiya Takemasa, Youichi Chikugo, Hidekazu Tatezawa, Kenichi Tanaka, Yutaro Tsuno, Mitsuru Hasegawa, Hiroki Kawai, Suguru Takeuchi, Ayano Ogata, Yasuharu Toratani
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Publication number: 20210373471Abstract: An image forming apparatus included an endless rotatable belt, a rotary pressing member, a pressing member, a driving unit, a heating roller, a temperature detection member, and a control unit. The rotary pressing member is configured to form a nip portion between the rotary pressing member and the belt, the nip portion being a portion in which a toner image borne by a recording material is fixed to the recording material while the recording material is nipped and conveyed. The control unit is configured to control the driving unit such that the driving unit does not start to rotate the belt in a period of time for a preparatory operation if a temperature of the heating roller is higher than a predetermined temperature, wherein the preparatory operation is performed for enabling image formation after an error or a jam is handled.Type: ApplicationFiled: May 18, 2021Publication date: December 2, 2021Inventors: Yasuharu Toratani, Mitsuru Hasegawa, Hiroki Kawai, Ayano Ogata
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Publication number: 20210373468Abstract: A fixing apparatus includes a heating roller including a plurality of halogen heaters whose number is three or more, a driving-force transmission member disposed on one end portion of the heating roller and configured to transmit rotational force that rotates the heating roller. The plurality of halogen heaters whose number is three or more includes a halogen heater in which an amount of heat generated from one end side on which the driving-force transmission member is provided is larger than an amount of heat generated from another end side, and in which heat generation distribution is asymmetric with respect to a center of a heat generating portion in a longitudinal direction, and a halogen heater in which heat generation distribution is symmetric with respect to a center of a heat generating portion in a longitudinal direction, and the symmetric halogen heater is larger in number than the asymmetric halogen heater.Type: ApplicationFiled: May 26, 2021Publication date: December 2, 2021Inventors: Hiroki Kawai, Mitsuru Hasegawa, Ayano Ogata, Yasuharu Toratani
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Publication number: 20210302879Abstract: An image forming apparatus includes a heater, heating roller heated by the heater and a fixing belt heated by the heating roller. A thermistor detects a temperature of the fixing belt at an area where the belt is stretched by the heating roller. When a CPU receives a signal which instructs the stop of rotation of the fixing belt, the CPU continues rotation of the fixing belt until the detected temperature detected by the thermistor decreases a predetermined temperature in a case in which the detected temperature is higher than the predetermined temperature.Type: ApplicationFiled: March 29, 2021Publication date: September 30, 2021Inventors: Mitsuru HASEGAWA, Hiroki KAWAI, Yasuharu TORATANI, Ayano OGATA