Patents by Inventor Keita Sugiura
Keita Sugiura 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).
-
Patent number: 10124590Abstract: A liquid ejection head, including: a first head unit; a second head unit shifted with respect to the first head unit in both of a first direction in which nozzles of the head units are arranged and a second direction orthogonal to the first direction and disposed so as to overlap the first head unit in the second direction; and a first wiring member having flexibility and drawn from the second head unit in the second direction toward the first head unit, wherein the first wiring member includes a large-width portion on which a drive circuit is mounted and a small-width portion having a width in the first direction smaller than a width of the large-width portion in the first direction, and wherein the small-width portion passes through a space existing next to the first head unit in the first direction and extends in the second direction.Type: GrantFiled: April 18, 2018Date of Patent: November 13, 2018Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Hideki Hayashi, Keita Sugiura, Taisuke Mizuno
-
Publication number: 20180319161Abstract: A liquid ejection head, including: nozzles; and a supply passage through which a liquid is supplied to the nozzles, wherein the supply passage includes (a) a first flow passage and (b) a second flow passage connected to the first flow passage and including two sections that extend in different directions from a connected position at which the first flow passage is connected to the second flow passage, the liquid being supplied to the second flow passage from the first flow passage, wherein the second flow passage has a liquid flow resistance larger in a first section than in a second section, and wherein a protrusion protruding toward the first flow passage is provided on an inner wall surface of the second flow passage facing the first flow passage, for permitting the liquid to more easily flow from the first flow passage into the first section than the second section.Type: ApplicationFiled: July 16, 2018Publication date: November 8, 2018Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Taisuke MIZUNO, Hideki HAYASHI, Keita SUGIURA
-
Publication number: 20180290451Abstract: A liquid jetting apparatus jetting a liquid onto a recording medium conveyed in a first direction includes head units arranged in a second direction orthogonal to the first direction. One head unit includes nozzle chips; one nozzle chip has a nozzle arrangement area wherein nozzles are aligned in a third direction crossing the first and second directions. The nozzle chip is arranged to be shifted relative to another nozzle chip in a direction crossing the first and second directions and different from the third direction. The head unit has a first overlapping portion wherein nozzle arrangement areas of first and second nozzle chips included in the nozzle chips partially overlap with each other in the first direction. The liquid jetting apparatus has a second overlapping portion wherein nozzle arrangement areas of third and fourth nozzle chips included in the head units partially overlap with each other in the first direction.Type: ApplicationFiled: June 14, 2018Publication date: October 11, 2018Inventors: Taisuke MIZUNO, Hideki HAYASHI, Keita SUGIURA
-
Patent number: 10071553Abstract: A liquid ejection device is disclosed. One device includes a liquid supply member defining a liquid supply channel that is in communication with a common liquid chamber via an outlet of the liquid supply channel. The outlet and the common liquid chamber extend along a longitudinal direction respectively. The liquid supply member includes a plurality of ribs located within the liquid supply channel, the plurality of ribs are disposed side by side in the longitudinal direction. The plurality of ribs includes a first rib, a second rib and a third rib. A distance from the first rib to the third rib in the longitudinal direction is smaller than a distance from the first rib to the second rib in the longitudinal direction.Type: GrantFiled: September 8, 2016Date of Patent: September 11, 2018Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Taisuke Mizuno, Yasuo Kato, Takashi Aiba, Keita Sugiura
-
Publication number: 20180229498Abstract: A liquid ejection head, including: a first head unit; a second head unit shifted with respect to the first head unit in both of a first direction in which nozzles of the head units are arranged and a second direction orthogonal to the first direction and disposed so as to overlap the first head unit in the second direction; and a first wiring member having flexibility and drawn from the second head unit in the second direction toward the first head unit, wherein the first wiring member includes a large-width portion on which a drive circuit is mounted and a small-width portion having a width in the first direction smaller than a width of the large-width portion in the first direction, and wherein the small-width portion passes through a space existing next to the first head unit in the first direction and extends in the second direction.Type: ApplicationFiled: April 18, 2018Publication date: August 16, 2018Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Hideki HAYASHI, Keita SUGIURA, Taisuke MIZUNO
-
Patent number: 10046565Abstract: A liquid ejection head, including: nozzles; and a supply passage through which a liquid is supplied to the nozzles, wherein the supply passage includes (a) a first flow passage and (b) a second flow passage connected to the first flow passage and including two sections that extend in different directions from a connected position at which the first flow passage is connected to the second flow passage, the liquid being supplied to the second flow passage from the first flow passage, wherein the second flow passage has a liquid flow resistance larger in a first section than in a second section, and wherein a protrusion protruding toward the first flow passage is provided on an inner wall surface of the second flow passage facing the first flow passage, for permitting the liquid to more easily flow from the first flow passage into the first section than the second section.Type: GrantFiled: March 28, 2017Date of Patent: August 14, 2018Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Taisuke Mizuno, Hideki Hayashi, Keita Sugiura
-
Patent number: 10022967Abstract: A liquid jetting apparatus jetting a liquid onto a recording medium conveyed in a first direction includes head units arranged in a second direction orthogonal to the first direction. One head unit includes nozzle chips; one nozzle chip has a nozzle arrangement area wherein nozzles are aligned in a third direction crossing the first and second directions. The nozzle chip is arranged to be shifted relative to another nozzle chip in a direction crossing the first and second directions and different from the third direction. The head unit has a first overlapping portion wherein nozzle arrangement areas of first and second nozzle chips included in the nozzle chips partially overlap with each other in the first direction. The liquid jetting apparatus has a second overlapping portion wherein nozzle arrangement areas of third and fourth nozzle chips included in the head units partially overlap with each other in the first direction.Type: GrantFiled: March 22, 2017Date of Patent: July 17, 2018Assignee: Brother Kogyo Kabushiki KaishaInventors: Taisuke Mizuno, Hideki Hayashi, Keita Sugiura
-
Publication number: 20180154664Abstract: A liquid ejection head includes: a first head unit; a second head unit disposed adjacent to the first head unit in a first direction and located on a first side of the first head unit in a second direction; and a heat uniforming unit shared by the first head unit and the second head unit. Each of the first head unit and the second head unit includes: a unit body including an actuator; and a first driver integrated circuit disposed on the first side of the unit body in the second direction. The heat uniforming unit includes a first heat uniforming member disposed on the first side of the first head unit and the second head unit in the second direction. The first heat uniforming member includes a first protrusion located next to the second head unit in the first direction and protruding toward the first head unit.Type: ApplicationFiled: February 2, 2018Publication date: June 7, 2018Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Keita SUGIURA, Masayuki TAKATA, Hideki HAYASHI
-
Patent number: 9975337Abstract: A liquid ejection head, including: a first head unit; a second head unit shifted with respect to the first head unit in both of a first direction in which nozzles of the head units are arranged and a second direction orthogonal to the first direction and disposed so as to overlap the first head unit in the second direction; and a first wiring member having flexibility and drawn from the second head unit in the second direction toward the first head unit, wherein the first wiring member includes a large-width portion on which a drive circuit is mounted and a small-width portion having a width in the first direction smaller than a width of the large-width portion in the first direction, and wherein the small-width portion passes through a space existing next to the first head unit in the first direction and extends in the second direction.Type: GrantFiled: March 28, 2017Date of Patent: May 22, 2018Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Hideki Hayashi, Keita Sugiura, Taisuke Mizuno
-
Publication number: 20180086093Abstract: A liquid ejection apparatus includes: an ejection module; a supply chamber connected to the ejection module and to a tank configured to store liquid; and a damper chamber connected to the supply chamber. The supply chamber has: a first opening communicating with the damper chamber; and a second opening communicating with the tank.Type: ApplicationFiled: March 8, 2017Publication date: March 29, 2018Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventor: Keita SUGIURA
-
Patent number: 9919546Abstract: A liquid ejection head includes: a first head unit; a second head unit disposed adjacent to the first head unit in a first direction and located on a first side of the first head unit in a second direction; and a heat uniforming unit shared by the first head unit and the second head unit. Each of the first head unit and the second head unit includes: a unit body including an actuator; and a first driver integrated circuit disposed on the first side of the unit body in the second direction. The heat uniforming unit includes a first heat uniforming member disposed on the first side of the first head unit and the second head unit in the second direction. The first heat uniforming member includes a first protrusion located next to the second head unit in the first direction and protruding toward the first head unit.Type: GrantFiled: March 24, 2017Date of Patent: March 20, 2018Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Keita Sugiura, Masayuki Takata, Hideki Hayashi
-
Publication number: 20180029362Abstract: A liquid ejection head includes: head units arranged in a first direction; first individual heat dissipators each corresponding to one of the head units and disposed on a first side of the head unit in a second direction; and a first common heat dissipator disposed on the first side of the head units in the second direction. The first common heat dissipator extends in the first direction and shared among the head units. Each head unit includes: a unit body including an actuator; and a first driver integrated circuit disposed on the first side of the unit body in the second direction. Each of the first individual heat dissipators is disposed between the first driver integrated circuit and the first common heat dissipator of the head unit so as to be in thermal contact with the first driver integrated circuit and the first common heat dissipator.Type: ApplicationFiled: March 24, 2017Publication date: February 1, 2018Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventor: Keita SUGIURA
-
Publication number: 20180029395Abstract: A liquid ejection head includes: a first head unit; a second head unit disposed adjacent to the first head unit in a first direction and located on a first side of the first head unit in a second direction; and a heat uniforming unit shared by the first head unit and the second head unit. Each of the first head unit and the second head unit includes: a unit body including an actuator; and a first driver integrated circuit disposed on the first side of the unit body in the second direction. The heat uniforming unit includes a first heat uniforming member disposed on the first side of the first head unit and the second head unit in the second direction. The first heat uniforming member includes a first protrusion located next to the second head unit in the first direction and protruding toward the first head unit.Type: ApplicationFiled: March 24, 2017Publication date: February 1, 2018Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Keita SUGIURA, Masayuki TAKATA, Hideki HAYASHI
-
Publication number: 20180001631Abstract: A liquid ejection head, including: nozzles; and a supply passage through which a liquid is supplied to the nozzles, wherein the supply passage includes (a) a first flow passage and (b) a second flow passage connected to the first flow passage and including two sections that extend in different directions from a connected position at which the first flow passage is connected to the second flow passage, the liquid being supplied to the second flow passage from the first flow passage, wherein the second flow passage has a liquid flow resistance larger in a first section than in a second section, and wherein a protrusion protruding toward the first flow passage is provided on an inner wall surface of the second flow passage facing the first flow passage, for permitting the liquid to more easily flow from the first flow passage into the first section than the second section.Type: ApplicationFiled: March 28, 2017Publication date: January 4, 2018Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Taisuke MIZUNO, Hideki HAYASHI, Keita SUGIURA
-
Publication number: 20180001630Abstract: A liquid ejection head, including: a first head unit; a second head unit shifted with respect to the first head unit in both of a first direction in which nozzles of the head units are arranged and a second direction orthogonal to the first direction and disposed so as to overlap the first head unit in the second direction; and a first wiring member having flexibility and drawn from the second head unit in the second direction toward the first head unit, wherein the first wiring member includes a large-width portion on which a drive circuit is mounted and a small-width portion having a width in the first direction smaller than a width of the large-width portion in the first direction, and wherein the small-width portion passes through a space existing next to the first head unit in the first direction and extends in the second direction.Type: ApplicationFiled: March 28, 2017Publication date: January 4, 2018Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Hideki HAYASHI, Keita SUGIURA, Taisuke MIZUNO
-
Publication number: 20170282553Abstract: A head unit includes: nozzle chips which are arranged side by side in a first direction, each of the nozzle chips having a jetting surface and nozzles aligned in a predetermined direction parallel to the jetting surface and crossing both of the first direction and a second direction orthogonal to the first direction; a holder configured to hold the nozzle chips from a side opposite to the jetting surface; and a fixing plate to which the nozzle chips are fixed and which is arranged on a side facing the jetting surface of each of the nozzle chips, wherein the holder has first walls arranged in the second direction so as to sandwich the nozzle chips therebetween; each of the first walls has first projections formed on an end surface thereof facing the fixing plate; and the first projections make contact with the fixing plate.Type: ApplicationFiled: March 21, 2017Publication date: October 5, 2017Inventors: Hideki HAYASHI, Keita SUGIURA, Taisuke MIZUNO
-
Publication number: 20170282562Abstract: A liquid jetting apparatus jetting a liquid onto a recording medium conveyed in a first direction includes head units arranged in a second direction orthogonal to the first direction. One head unit includes nozzle chips; one nozzle chip has a nozzle arrangement area wherein nozzles are aligned in a third direction crossing the first and second directions. The nozzle chip is arranged to be shifted relative to another nozzle chip in a direction crossing the first and second directions and different from the third direction. The head unit has a first overlapping portion wherein nozzle arrangement areas of first and second nozzle chips included in the nozzle chips partially overlap with each other in the first direction. The liquid jetting apparatus has a second overlapping portion wherein nozzle arrangement areas of third and fourth nozzle chips included in the head units partially overlap with each other in the first direction.Type: ApplicationFiled: March 22, 2017Publication date: October 5, 2017Inventors: Taisuke MIZUNO, Hideki HAYASHI, Keita SUGIURA
-
Publication number: 20170087833Abstract: A liquid ejecting head includes: a circuit board extending in a first direction and having a first surface and a second surface opposite the first surface in a second direction perpendicular to the first direction; a main body including head units; wiring members each extending from each head unit toward the circuit board; contacts including a first contact and a second contact connected to corresponding wiring members; a first support member facing the first surface; and a second support member facing the second surface. The first support member has a first protrusion protruding toward the first surface in the second direction and arranged at a position aligned with the second contact in the second direction. The second support member has a second protrusion protruding toward the second surface in the second direction and arranged at a position aligned with the first contact in the second direction.Type: ApplicationFiled: March 30, 2016Publication date: March 30, 2017Inventors: Keita Sugiura, Shohei Koide, Takashi Aiba
-
Patent number: 9604458Abstract: A liquid ejecting head includes: a circuit board extending in a first direction and having a first surface and a second surface opposite the first surface in a second direction perpendicular to the first direction; a main body including head units; wiring members each extending from each head unit toward the circuit board; contacts including a first contact and a second contact connected to corresponding wiring members; a first support member facing the first surface; and a second support member facing the second surface. The first support member has a first protrusion protruding toward the first surface in the second direction and arranged at a position aligned with the second contact in the second direction. The second support member has a second protrusion protruding toward the second surface in the second direction and arranged at a position aligned with the first contact in the second direction.Type: GrantFiled: March 30, 2016Date of Patent: March 28, 2017Assignee: Brother Kogyo Kabushiki KaishaInventors: Keita Sugiura, Shohei Koide, Takashi Aiba
-
Publication number: 20170066247Abstract: A liquid ejection device is disclosed. One device includes a liquid supply member defining a liquid supply channel that is in communication with a common liquid chamber via an outlet of the liquid supply channel. The outlet and the common liquid chamber extend along a longitudinal direction respectively. The liquid supply member includes a plurality of ribs located within the liquid supply channel, the plurality of ribs are disposed side by side in the longitudinal direction. The plurality of ribs includes a first rib, a second rib and a third rib. A distance from the first rib to the third rib in the longitudinal direction is smaller than a distance from the first rib to the second rib in the longitudinal direction.Type: ApplicationFiled: September 8, 2016Publication date: March 9, 2017Inventors: Taisuke MIZUNO, Yasuo KATO, Takashi AIBA, Keita SUGIURA