Patents by Inventor Akihiro Fujiwara
Akihiro Fujiwara 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: 20240045364Abstract: To accomplish engagement between a coupling member and a drive transmission member of main assembly. A drum unit includes a photosensitive drum and a coupling member which is provided adjacent to an end portion of the photosensitive drum and which is connected with the photosensitive drum so as to be capable of drive transmission. the coupling member is inclinable relative to a rotational axis of the photosensitive drum, and an inclination angle relative to photosensitive drum is reduced with rotational driving operation.Type: ApplicationFiled: October 18, 2023Publication date: February 8, 2024Inventors: Akihiro Fujiwara, Ryuta Murakami
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Publication number: 20230400809Abstract: A cartridge includes a photosensitive drum and a developing roller, with the developing roller being configured to develop a latent image formed on the photosensitive drum with toner. The cartridge also includes a first electrical contact electrically connected to the charging roller and the second electrical contact electrically connected to the developing roller. As viewed along the axis of the photosensitive drum, the first electrical contact and the second electrical contact are positioned on opposite sides with respect to a line that passes through an axis of the photosensitive drum and an axis of the developing roller.Type: ApplicationFiled: August 24, 2023Publication date: December 14, 2023Inventors: Naoki Matsumaru, Ryuta Murakami, Tadashi Horikawa, Akihiro Fujiwara
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Publication number: 20230272977Abstract: A heat exchanger includes a pair of headers, and a plurality of heat exchanger tubes stacked between the pair of headers. Each of the headers includes header members each having a gutter-shaped cross section and including an open part and a bottom part. The header members are stacked in a staking direction of the heat exchanger tubes in such a way that the bottom part of one header member closes the open part of another header member. A fitted hole into which an end of a heat exchanger tube is fitted is provided in a side part of the header member.Type: ApplicationFiled: August 24, 2021Publication date: August 31, 2023Applicant: SANDEN CORPORATIONInventors: Akira Kaneko, Naotaka Iwasawa, Akihiro Fujiwara
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Publication number: 20230229108Abstract: A cartridge includes a photosensitive drum supported by a frame, a coupling positioned at an end of the photosensitive drum, with the coupling being configured to receive a driving force for rotating the photosensitive drum. A lever is movably supported by a part of the frame at a position that is adjacent to the end of the photosensitive drum, with the lever being movable between a first position and a second position. As viewed along the axis of the photosensitive drum, an end of the lever is a first distance from the axis of the photosensitive drum when the lever is in the first position, and the end of the lever is a second distance from the axis of the photosensitive drum when the lever is in the second position, with the second distance being greater than the first distance.Type: ApplicationFiled: March 21, 2023Publication date: July 20, 2023Inventors: Naoki Matsumaru, Ryuta Murakami, Tadashi Horikawa, Akihiro Fujiwara
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Patent number: 11703794Abstract: A cartridge includes a photosensitive drum, the movable member movable relative to the photosensitive drum to control an inclination angle of a drive transmission member. The movable member is movable between a first position for reducing an inclination angle of the drive transmission member relative to the photosensitive drum and a second position retracted from the first position. By this, driving connection can be smoothly carried out.Type: GrantFiled: November 1, 2022Date of Patent: July 18, 2023Assignee: Canon Kabushiki KaishaInventors: Naoki Matsumaru, Ryuta Murakami, Tadashi Horikawa, Akihiro Fujiwara
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Publication number: 20230048100Abstract: A cartridge includes a photosensitive drum, the movable member movable relative to the photosensitive drum to control an inclination angle of a drive transmission member. The movable member is movable between a first position for reducing an inclination angle of the drive transmission member relative to the photosensitive drum and a second position retracted from the first position. By this, driving connection can be smoothly carried out.Type: ApplicationFiled: November 1, 2022Publication date: February 16, 2023Inventors: Naoki Matsumaru, Ryuta Murakami, Tadashi Horikawa, Akihiro Fujiwara
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Patent number: 11449001Abstract: A cartridge mountable to and dismountable from a main assembly of an image forming apparatus includes a memory, a guide configured to guide a portion-to-be-guided provided in the main assembly and to guide a main assembly contact provided in the main assembly to a memory contact of the memory when the cartridge is mounted in the main assembly, and a grip portion. The guide is provided at a bottom of the cartridge when the cartridge is hung by gripping the grip portion and constitutes a part of a supporting portion configured to support the cartridge when the cartridge is placed on a horizontal placement surface. The guide has a chamfered surface formed by being chamfered. When the cartridge is supported at the supporting portion, the chamfered surface opposes the horizontal placement surface, and a surface of the memory contact is inclined with respect to the horizontal placement surface.Type: GrantFiled: January 28, 2021Date of Patent: September 20, 2022Assignee: Canon Kabushiki KaishaInventors: Akihiro Fujiwara, Tadashi Horikawa, Naoki Matsumaru, Ryuta Murakami, Daisuke Makiguichi
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Publication number: 20220082984Abstract: To accomplish engagement between a coupling member and a drive transmission member of main assembly. A drum unit includes a photosensitive drum and a coupling member which is provided adjacent to an end portion of the photosensitive drum and which is connected with the photosensitive drum so as to be capable of drive transmission. the coupling member is inclinable relative to a rotational axis of the photosensitive drum, and an inclination angle relative to photosensitive drum is reduced with rotational driving operation.Type: ApplicationFiled: November 22, 2021Publication date: March 17, 2022Inventors: Akihiro Fujiwara, Ryuta Murakami
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Patent number: 11274834Abstract: A heat exchanger according to an embodiment of the present disclosure and an air conditioner having the same include a heat transfer tube through which a refrigerant passes, a fin having a mounting hole in which the heat transfer tube is installed, and a fin collar extending from the mounting hole and being in contact with the heat transfer tube by the expansion of the heat transfer tube, wherein the fin collar includes a base portion provided adjacent to the fin and extending to be bent at a first curvature radius, and a distal end located on the opposite side of the base portion and extending to be bent at a second curvature radius smaller than the first curvature radius.Type: GrantFiled: February 20, 2018Date of Patent: March 15, 2022Assignee: Samsung Electronics Co., Ltd.Inventors: Sang mu Lee, Hyun young Kim, Akihiro Fujiwara
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Patent number: 11125505Abstract: The present disclosure relates to a heat exchanger and an air conditioner improving heat exchange ability by optimizing the number of high protrusions of a heat transfer tube and a height difference between the high protrusion and a low protrusion to increase the heat transfer performance of the heat transfer tube or reduce the pressure loss in the tube. An air conditioner includes the heat exchanger including a heat transfer tube configured to allow the refrigerant to flow, fins installed on the heat transfer tube, and fin collars forming an insertion hole through which the heat transfer tube is inserted and passes, and the fin collars is in contact with the heat transfer tube by tube expansion of the heat transfer tube.Type: GrantFiled: September 14, 2018Date of Patent: September 21, 2021Assignee: Samsung Electronics Co., Ltd.Inventors: Sang Mu Lee, Akihiro Fujiwara, Hyun Young Kim
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Publication number: 20210149335Abstract: A cartridge mountable to and dismountable from a main assembly of an image forming apparatus includes a memory, a guide configured to guide a portion-to-be-guided provided in the main assembly and to guide a main assembly contact provided in the main assembly to a memory contact of the memory when the cartridge is mounted in the main assembly, and a grip portion. The guide is provided at a bottom of the cartridge when the cartridge is hung by gripping the grip portion and constitutes a part of a supporting portion configured to support the cartridge when the cartridge is placed on a horizontal placement surface. The guide has a chamfered surface formed by being chamfered. When the cartridge is supported at the supporting portion, the chamfered surface opposes the horizontal placement surface, and a surface of the memory contact is inclined with respect to the horizontal placement surface.Type: ApplicationFiled: January 28, 2021Publication date: May 20, 2021Inventors: Akihiro Fujiwara, Tadashi Horikawa, Naoki Matsumaru, Ryuta Murakami, Daisuke Makiguichi
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Patent number: 10981516Abstract: To a hinge pillar including a hinge pillar inner and a hinge pillar outer that form a closed cross-section extending vertically, a speaker box configured to hold and house a speaker therein is joined and fixed. As necessary, the speaker box includes a box part formed of a sheet metal member including a bottom and side walls that form a housing space housing the speaker, together with the bottom. The box part is arranged in the opening, with the bottom located in the closed cross-section and with the housing space open inside a vehicle cabin, and is joined to an edge of the opening.Type: GrantFiled: February 23, 2018Date of Patent: April 20, 2021Assignee: MAZDA MOTOR CORPORATIONInventors: Yuki Kataoka, Hidenori Matsuoka, Takeshi Nakamura, Kiyoshi Mutsura, Akihiro Fujiwara, Yoshihiro Teshima, Koji Wakamatsu, Hiroshi Yamanaka
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Patent number: 10962927Abstract: A cartridge mountable to and dismountable from a main assembly of an image forming apparatus includes a memory, a guide configured to guide a portion-to-be-guided provided in the main assembly and to guide a main assembly contact provided in the main assembly to a memory contact of the memory when the cartridge is mounted in the main assembly, and a grip portion. The guide is provided at a bottom of the cartridge when the cartridge is hung by gripping the grip portion and constitutes a part of a supporting portion configured to support the cartridge when the cartridge is placed on a horizontal placement surface. The guide has a chamfered surface formed by being chamfered. When the cartridge is supported at the supporting portion, the chamfered surface opposes the horizontal placement surface, and a surface of the memory contact is inclined with respect to the horizontal placement surface.Type: GrantFiled: November 13, 2019Date of Patent: March 30, 2021Assignee: Canon Kabushiki KaishaInventors: Akihiro Fujiwara, Tadashi Horikawa, Naoki Matsumaru, Ryuta Murakami, Daisuke Makiguichi
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Patent number: 10928771Abstract: A cartridge mountable to and dismountable from a main assembly of an image forming apparatus includes a memory, a guide configured to guide a portion-to-be-guided provided in the main assembly and to guide a main assembly contact provided in the main assembly to a memory contact of the memory when the cartridge is mounted in the main assembly, and a grip portion. The guide is provided at a bottom of the cartridge when the cartridge is hung by gripping the grip portion and constitutes a part of a supporting portion configured to support the cartridge when the cartridge is placed on a horizontal placement surface. The guide has a chamfered surface formed by being chamfered. When the cartridge is supported at the supporting portion, the chamfered surface opposes the horizontal placement surface, and a surface of the memory contact is inclined with respect to the horizontal placement surface.Type: GrantFiled: November 13, 2019Date of Patent: February 23, 2021Assignee: Canon Kabushiki KaishaInventors: Akihiro Fujiwara, Tadashi Horikawa, Naoki Matsumaru, Ryuta Murakami, Daisuke Makiguichi
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Publication number: 20200301352Abstract: A cartridge includes a photosensitive drum, the movable member movable relative to the photosensitive drum to control an inclination angle of a drive transmission member. The movable member is movable between a first position for reducing an inclination angle of the drive transmission member relative to the photosensitive drum and a second position retracted from the first position. By this, driving connection can be smoothly carried out.Type: ApplicationFiled: June 9, 2020Publication date: September 24, 2020Inventors: Naoki Matsumaru, Ryuta Murakami, Tadashi Horikawa, Akihiro Fujiwara, Akinobu Hirayama, Daisuke Makiguchi, Hiroaki Nosho, Takuro Kanno, Goshi Ozaki, Tachio Kawai, Daisuke Abe
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Publication number: 20200292237Abstract: The present disclosure relates to a heat exchanger and an air conditioner improving heat exchange ability by optimizing the number of high protrusions of a heat transfer tube and a height difference between the high protrusion and a low protrusion to increase the heat transfer performance of the heat transfer tube or reduce the pressure loss in the tube. An air conditioner includes the heat exchanger including a heat transfer tube configured to allow the refrigerant to flow, fins installed on the heat transfer tube, and fin collars forming an insertion hole through which the heat transfer tube is inserted and passes, and the fin collars is in contact with the heat transfer tube by tube expansion of the heat transfer tube.Type: ApplicationFiled: September 14, 2018Publication date: September 17, 2020Inventors: Sang Mu LEE, Akihiro FUJIWARA, Hyun Young KIM
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Patent number: 10627780Abstract: A cartridge mountable to and dismountable from a main assembly of an image forming apparatus includes a memory, a guide configured to guide a portion-to-be-guided provided in the main assembly and to guide a main assembly contact provided in the main assembly to a memory contact of the memory when the cartridge is mounted in the main assembly, and a grip portion. The guide is provided at a bottom of the cartridge when the cartridge is hung by gripping the grip portion and constitutes a part of a supporting portion configured to support the cartridge when the cartridge is placed on a horizontal placement surface. The guide has a chamfered surface formed by being chamfered. When the cartridge is supported at the supporting portion, the chamfered surface opposes the horizontal placement surface, and a surface of the memory contact is inclined with respect to the horizontal placement surface.Type: GrantFiled: January 17, 2019Date of Patent: April 21, 2020Assignee: Canon Kabushiki KaishaInventors: Akihiro Fujiwara, Tadashi Horikawa, Naoki Matsumaru, Ryuta Murakami, Daisuke Makiguchi
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Publication number: 20200108781Abstract: To a hinge pillar including a hinge pillar inner and a hinge pillar outer that form a closed cross-section extending vertically, a speaker box configured to hold and house a speaker therein is joined and fixed. As necessary, the speaker box includes a box part formed of a sheet metal member including a bottom and side walls that form a housing space housing the speaker, together with the bottom. The box part is arranged in the opening, with the bottom located in the closed cross-section and with the housing space open inside a vehicle cabin, and is joined to an edge of the opening.Type: ApplicationFiled: February 23, 2018Publication date: April 9, 2020Applicant: MAZDA MOTOR CORPORATIONInventors: Yuki KATAOKA, Hidenori MATSUOKA, Takeshi NAKAMURA, Kiyoshi MUTSURA, Akihiro FUJIWARA, Yoshihiro TESHIMA, Koji WAKAMATSU, Hiroshi YAMANAKA
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Publication number: 20200081396Abstract: A cartridge mountable to and dismountable from a main assembly of an image forming apparatus includes a memory, a guide configured to guide a portion-to-be-guided provided in the main assembly and to guide a main assembly contact provided in the main assembly to a memory contact of the memory when the cartridge is mounted in the main assembly, and a grip portion. The guide is provided at a bottom of the cartridge when the cartridge is hung by gripping the grip portion and constitutes a part of a supporting portion configured to support the cartridge when the cartridge is placed on a horizontal placement surface. The guide has a chamfered surface formed by being chamfered. When the cartridge is supported at the supporting portion, the chamfered surface opposes the horizontal placement surface, and a surface of the memory contact is inclined with respect to the horizontal placement surface.Type: ApplicationFiled: November 13, 2019Publication date: March 12, 2020Inventors: Akihiro Fujiwara, Tadashi Horikawa, Naoki Matsumaru, Ryuta Murakami, Daisuke Makiguichi
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Patent number: D873341Type: GrantFiled: June 19, 2018Date of Patent: January 21, 2020Assignee: Canon Kabushiki KaishaInventors: Tadashi Horikawa, Noriyuki Komatsu, Naoki Matsumaru, Ryuta Murakami, Daisuke Makiguchi, Akihiro Fujiwara, Naoki Maeda, Go Torii