Patents by Inventor Toshiaki Nagashima
Toshiaki Nagashima 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: 20210333743Abstract: There are provided a rotatable developer accommodating portion accommodating a developer, a discharge end portion provided at a bottom side with a discharge opening for discharging the developer accommodated in the developer accommodating portion, an engaging portion 30 engageable with a portion-to-be-engaged 11b with a mounting operation of the developer supply container 1 to displace the portion-to-be-engaged 11b in an upward direction U to bring the receiving opening into fluid communication with the discharge opening, and a swing shaft 41 rotatably supporting engaging portion 30 provided at such a position that opposite end portions of the engaging portion 30 a rotatable.Type: ApplicationFiled: July 7, 2021Publication date: October 28, 2021Inventors: Masato Yamaoka, Toshiaki Nagashima
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Patent number: 11137714Abstract: A developer supply container supplies a developer through a developer receiving opening displacably provided in a developer receiving apparatus to which the developer supply container is detachably mountable. The developer supply container includes a developer accommodating portion to accommodate a developer, and a discharge opening to permit discharge of the developer in the developer accommodating portion toward the developer receiving opening. An engaging portion, engageable with the developer receiving apparatus, displaces the developer receiving opening toward a position of the discharge opening at the time when the developer supply container is mounted to the developer receiving apparatus, with a mounting operation of the developer supply container.Type: GrantFiled: November 25, 2013Date of Patent: October 5, 2021Assignee: Canon Kabushiki KaishaInventors: Manabu Jimba, Ayatomo Okino, Katsuya Murakami, Toshiaki Nagashima, Fumio Tazawa
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Patent number: 11119425Abstract: If a user is not familiar with the operation for the developer supply container, the rotating operation for the developer supply container may be insufficient, so that developer supply container does not reach a predetermined operating position, with the result of abnormal developer supply. by increasing a rotation load of a second gear 6 which is in an operable connection with a drive gear member 12 of the developer receiving apparatus 10 by a function of a locking member 7, the developer supply container 1 mounted to the developer receiving apparatus 10 is rotated toward the supply position. After the developer supply container 1 rotates to the supply position, the locking by the locking member 7 is released, by which the rotation load applied to the second gear 6 is reduced, so that drive transmission, thereafter, to the feeding member 4 for developer supply is smooth.Type: GrantFiled: January 10, 2020Date of Patent: September 14, 2021Assignee: CANON KABUSHIKI KAISHAInventors: Nobuo Nakajima, Ayatomo Okino, Katsuya Murakami, Toshiaki Nagashima, Yutaka Ban
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Patent number: 11099519Abstract: There are provided a rotatable developer accommodating portion accommodating a developer, a discharge end portion provided at a bottom side with a discharge opening for discharging the developer accommodated in the developer accommodating portion, an engaging portion 30 engageable with a portion-to-be-engaged 11b with a mounting operation of the developer supply container 1 to displace the portion-to-be-engaged 11b in an upward direction U to bring the receiving opening into fluid communication with the discharge opening, and a swing shaft 41 rotatably supporting engaging portion 30 provided at such a position that opposite end portions of the engaging portion 30 a rotatable.Type: GrantFiled: April 30, 2020Date of Patent: August 24, 2021Assignee: Canon Kabushiki KaishaInventors: Masato Yamaoka, Toshiaki Nagashima
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Patent number: 11092926Abstract: There are provided a rotatable developer accommodating portion accommodating a developer, a discharge end portion provided at a bottom side with a discharge opening for discharging the developer accommodated in the developer accommodating portion, an engaging portion 30 engageable with a portion-to-be-engaged 11b with a mounting operation of the developer supply container 1 to displace the portion-to-be-engaged 11b in an upward direction U to bring the receiving opening into fluid communication with the discharge opening, and a swing shaft 41 rotatably supporting engaging portion 30 provided at such a position that opposite end portions of the engaging portion 30 a rotatable.Type: GrantFiled: July 30, 2020Date of Patent: August 17, 2021Assignee: Canon Kabushiki KaishaInventors: Masato Yamaoka, Toshiaki Nagashima
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Publication number: 20210232067Abstract: Conventionally, when a developer is supplied into a developer receiving apparatus from a developer supply container using the air, a filter is provided in the developer receiving apparatus side, but the pressure feeding type wherein a mixture of the air and the developer is continuously fed from the developer supply container into the developer receiving apparatus side involves a problem of filter clogging. The developer supply container side is provided with a pump portion which effects a suction operation for moving the air from inside of the developer receiving portion to the developer accommodating portion side and a discharging operation for moving the air from the inside of the developer accommodating portion to the developer receiving portion side. By this, a back washing effect of dusting the developer from the filter is applied to the filter portion during the suction operation, so that the clogging of the filter is suppressed.Type: ApplicationFiled: March 18, 2021Publication date: July 29, 2021Inventors: Ayatomo Okino, Toshiaki Nagashima, Katsuya Murakami, Fumio Tazawa, Yusuke Yamada
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Publication number: 20210165345Abstract: A bellow-like pump is provided on the side of a developer supply container, and the pump alternately repeats the suction operation and the discharging operation through the discharge opening by a driving force inputted from an image forming apparatus side. By this, the developer can be sufficiently loosened, thus properly discharging the developer.Type: ApplicationFiled: February 3, 2021Publication date: June 3, 2021Inventors: Ayatomo Okino, Toshiaki Nagashima, Katsuya Murakami, Fumio Tazawa, Yusuke Yamada
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Patent number: 10983458Abstract: Conventionally, when a developer is supplied into a developer receiving apparatus from a developer supply container using the air, a filter is provided in the developer receiving apparatus side, but the pressure feeding type wherein a mixture of the air and the developer is continuously fed from the developer supply container into the developer receiving apparatus side involves a problem of filter clogging. The developer supply container side is provided with a pump portion which effects a suction operation for moving the air from inside of the developer receiving portion to the developer accommodating portion side and a discharging operation for moving the air from the inside of the developer accommodating portion to the developer receiving portion side. By this, a back washing effect of dusting the developer from the filter is applied to the filter portion during the suction operation, so that the clogging of the filter is suppressed.Type: GrantFiled: July 17, 2019Date of Patent: April 20, 2021Assignee: CANON KABUSHIKI KAISHAInventors: Ayatomo Okino, Toshiaki Nagashima, Katsuya Murakami, Fumio Tazawa, Yusuke Yamada
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Patent number: 10948849Abstract: Conventionally, the developer in the developer supply container is discharged by an air-supply pump and a suction pump which are provided in the main assembly side of the image forming apparatus, and therefore, the developer is compacted by the increase of the internal pressure of the developer supply container resulting from the air-supply. Therefore, the proper suction of the developer from the developer supply container becomes difficult with the result of shortage of the developer amount to be supplied. A bellow-like pump is provided on the side of the developer supply container, and the pump alternately repeats the suction operation and the discharging operation through the discharge opening by a driving force inputted from the image forming apparatus side. By this, the developer can be sufficiently loosened, thus properly discharging the developer.Type: GrantFiled: January 8, 2019Date of Patent: March 16, 2021Assignee: Canon Kabushiki KaishaInventors: Ayatomo Okino, Toshiaki Nagashima, Katsuya Murakami, Fumio Tazawa, Yusuke Yamada
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Publication number: 20200356043Abstract: There are provided a rotatable developer accommodating portion accommodating a developer, a discharge end portion provided at a bottom side with a discharge opening for discharging the developer accommodated in the developer accommodating portion, an engaging portion 30 engageable with a portion-to-be-engaged 11b with a mounting operation of the developer supply container 1 to displace the portion-to-be-engaged 11b in an upward direction U to bring the receiving opening into fluid communication with the discharge opening, and a swing shaft 41 rotatably supporting engaging portion 30 provided at such a position that opposite end portions of the engaging portion 30 a rotatable.Type: ApplicationFiled: July 30, 2020Publication date: November 12, 2020Inventors: Masato Yamaoka, Toshiaki Nagashima
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Publication number: 20200348616Abstract: In the case that a developer supply container is provided with a feeding portion for feeding a developer by receiving a rotational force and a pump portion for discharging the developer by reciprocation, and the rotational force and a reciprocating force are received from a main assembly side of an image forming apparatus, there is a liability that a driving connection is not properly established between a portion of the developer supply container for receiving the reciprocating force and a portion of the main assembly side for applying the reciprocating force. The developer supply container is provided with a drive converting mechanism for converting the rotational force received from the main assembly side to a force for operating a volume changing type pump.Type: ApplicationFiled: July 20, 2020Publication date: November 5, 2020Inventors: Katsuya Murakami, Toshiaki Nagashima, Fumio Tazawa, Ayatomo Okino, Yusuke Yamada
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Patent number: 10761474Abstract: There are provided a rotatable developer accommodating portion accommodating a developer, a discharge end portion provided at a bottom side with a discharge opening for discharging the developer accommodated in the developer accommodating portion, an engaging portion 30 engageable with a portion-to-be-engaged 11b with a mounting operation of the developer supply container 1 to displace the portion-to-be-engaged 11b in an upward direction U to bring the receiving opening into fluid communication with the discharge opening, and a swing shaft 41 rotatably supporting engaging portion 30 provided at such a position that opposite end portions of the engaging portion 30 a rotatable.Type: GrantFiled: March 14, 2019Date of Patent: September 1, 2020Assignee: Canon Kabushiki KaishaInventors: Masato Yamaoka, Toshiaki Nagashima
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Patent number: 10754276Abstract: A developer supply includes a developer container body configured to accommodate developer, a gear portion configured and positioned to receive a force for rotating the developer container body, and a pump portion configured and positioned to act upon the developer container body to discharge the developer out of the developer supply container, with the pump portion having a volume that changes with reciprocation of the pump portion. A weight is configured and positioned to reciprocate the pump portion with a rotation of the developer container body by the force received by the gear.Type: GrantFiled: April 23, 2019Date of Patent: August 25, 2020Assignee: Canon Kabushiki KaishaInventors: Katsuya Murakami, Toshiaki Nagashima, Fumio Tazawa, Ayatomo Okino, Yusuke Yamada
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Publication number: 20200257240Abstract: There are provided a rotatable developer accommodating portion accommodating a developer, a discharge end portion provided at a bottom side with a discharge opening for discharging the developer accommodated in the developer accommodating portion, an engaging portion 30 engageable with a portion-to-be-engaged 11b with a mounting operation of the developer supply container 1 to displace the portion-to-be-engaged 11b in an upward direction U to bring the receiving opening into fluid communication with the discharge opening, and a swing shaft 41 rotatably supporting engaging portion 30 provided at such a position that opposite end portions of the engaging portion 30 a rotatable.Type: ApplicationFiled: April 30, 2020Publication date: August 13, 2020Inventors: Masato Yamaoka, Toshiaki Nagashima
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Publication number: 20200150563Abstract: If a user is not familiar with the operation for the developer supply container, the rotating operation for the developer supply container may be insufficient, so that developer supply container does not reach a predetermined operating position, with the result of abnormal developer supply. by increasing a rotation load of a second gear 6 which is in an operable connection with a drive gear member 12 of the developer receiving apparatus 10 by a function of a locking member 7, the developer supply container 1 mounted to the developer receiving apparatus 10 is rotated toward the supply position. After the developer supply container 1 rotates to the supply position, the locking by the locking member 7 is released, by which the rotation load applied to the second gear 6 is reduced, so that drive transmission, thereafter, to the feeding member 4 for developer supply is smooth.Type: ApplicationFiled: January 10, 2020Publication date: May 14, 2020Inventors: Nobuo Nakajima, Ayatomo Okino, Katsuya Murakami, Toshiaki Nagashima, Yutaka Ban
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Patent number: 10564574Abstract: If a user is not familiar with the operation for the developer supply container, the rotating operation for the developer supply container may be insufficient, so that developer supply container does not reach a predetermined operating position, with the result of abnormal developer supply. by increasing a rotation load of a second gear 6 which is in an operable connection with a drive gear member 12 of the developer receiving apparatus 10 by a function of a locking member 7, the developer supply container 1 mounted to the developer receiving apparatus 10 is rotated toward the supply position. After the developer supply container 1 rotates to the supply position, the locking by the locking member 7 is released, by which the rotation load applied to the second gear 6 is reduced, so that drive transmission, thereafter, to the feeding member 4 for developer supply is smooth.Type: GrantFiled: September 20, 2018Date of Patent: February 18, 2020Assignee: CANON KABUSHIKI KAISHAInventors: Nobuo Nakajima, Ayatomo Okino, Katsuya Murakami, Toshiaki Nagashima, Yutaka Ban
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Publication number: 20200004177Abstract: Conventionally, the developer in the developer supply container is discharged by an air-supply pump and a suction pump which are provided in the main assembly side of the image forming apparatus, and therefore, the developer is compacted by the increase of the internal pressure of the developer supply container resulting from the air-supply. Therefore, the proper suction of the developer from the developer supply container becomes difficult with the result of shortage of the developer amount to be supplied. A bellow-like pump is provided on the side of the developer supply container, and the pump alternately repeats the suction operation and the discharging operation through the discharge opening by a driving force inputted from the image forming apparatus side. By this, the developer can be sufficiently loosened, thus properly discharging the developer.Type: ApplicationFiled: September 10, 2019Publication date: January 2, 2020Inventors: Ayatomo Okino, Toshiaki Nagashima, Katsuya Murakami, Fumio Tazawa, Yusuke Yamada
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Patent number: 10520881Abstract: A developer supply container includes a developer accommodating body configured to contain developer. A developer discharging body is provided in fluid communication with the developer accommodating body, with the developer discharging body having a discharge opening configured to discharge the developer from the developer discharging body, and with the developer accommodating body being rotatable relative to the developer discharging body. A track is provided at each of opposite sides of the developer discharging body.Type: GrantFiled: January 29, 2019Date of Patent: December 31, 2019Assignee: Canon Kabushiki KaishaInventors: Manabu Jimba, Ayatomo Okino, Katsuya Murakami, Toshiaki Nagashima, Fumio Tazawa
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Patent number: 10520882Abstract: A developer supply container includes a developer accommodating body configured to contain developer. A developer discharging body is provided in fluid communication with the developer accommodating body, with the developer discharging body having a discharge opening configured to discharge the developer from the developer discharging body, and with the developer accommodating body being rotatable relative to the developer discharging body. A track is provided at each of opposite sides of the developer discharging body.Type: GrantFiled: January 29, 2019Date of Patent: December 31, 2019Assignee: Canon Kabushiki KaishaInventors: Manabu Jimba, Ayatomo Okino, Katsuya Murakami, Toshiaki Nagashima, Fumio Tazawa
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Patent number: 10514654Abstract: A developer supply container includes a developer accommodating body configured to contain developer, with the developer accommodating body being rotatable about a rotational axis. A developer discharging body is provided in fluid communication with the developer accommodating body, with the developer discharging body including a discharge opening through which the developer can be discharged from the developer discharging body. A track is provided on each of opposite sides of the developer discharging body.Type: GrantFiled: December 8, 2017Date of Patent: December 24, 2019Assignee: Canon Kabushiki KaishaInventors: Manabu Jimba, Ayatomo Okino, Katsuya Murakami, Toshiaki Nagashima, Fumio Tazawa