Patents by Inventor Toru Kakiuchi
Toru Kakiuchi 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: 20220176696Abstract: A liquid discharging apparatus includes: liquid discharging modules which are arranged in a first direction along a predetermined plane; and a wiring member commonly joined to the liquid discharging modules. The wiring member includes: first parts joined to the liquid discharging modules, respectively, in a state that the first parts are arranged side by side in the first direction along the predetermined plane; second parts; and a sixth part. The second parts include: third parts extending from the first parts, respectively, in a second direction orthogonal to the first direction and along the predetermined plane, fourth parts extending in a third direction away from the predetermined plane, and fifth parts connected to the third parts and the fourth parts, respectively. Width in the first direction of each of the second parts is smaller than width in the first direction of the sixth part.Type: ApplicationFiled: February 24, 2022Publication date: June 9, 2022Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventor: Toru KAKIUCHI
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Patent number: 11318745Abstract: A liquid discharging apparatus includes: liquid discharging modules which are arranged in a first direction along a predetermined plane; and a wiring member commonly joined to the liquid discharging modules. The wiring member includes: first parts joined to the liquid discharging modules, respectively, in a state that the first parts are arranged side by side in the first direction along the predetermined plane; second parts; and a sixth part. The second parts include: third parts extending from the first parts, respectively, in a second direction orthogonal to the first direction and along the predetermined plane, fourth parts extending in a third direction away from the predetermined plane, and fifth parts connected to the third parts and the fourth parts, respectively. Width in the first direction of each of the second parts is smaller than width in the first direction of the sixth part.Type: GrantFiled: September 24, 2020Date of Patent: May 3, 2022Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventor: Toru Kakiuchi
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Publication number: 20220126588Abstract: A liquid discharge head includes: nozzles aligned on a nozzle surface; a supply manifold configured that a liquid is supplied therein from the outside of the liquid discharge head; a return manifold which is arranged between the nozzle surface and the supply manifold in a first direction, which is configured that the liquid is flown out therefrom to the outside of the liquid discharge head, and which is provided with a return damper part; and individual flow channels each of which corresponds to one of the nozzles. Each of the individual flow channels has a return throttle channel communicating the corresponding nozzle with the return manifold and being arranged between the return manifold and the nozzle surface in the first direction. The return manifold has a compliance larger than a compliance of the supply manifold.Type: ApplicationFiled: October 12, 2021Publication date: April 28, 2022Inventors: Takaaki YOSHINO, Toru KAKIUCHI, Jiro YAMAMOTO, Taisuke MIZUNO, Shotaro KANZAKI
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Publication number: 20220126589Abstract: A liquid discharging head includes: a first common channel, a second common channel, and individual channels aligned in a first direction. Each of the individual channels has: a nozzle, a pressure chamber, a descender formed in a channel substrate which is formed of silicon and which is arranged between a nozzle plate and a pressure chamber plate in a second direction orthogonal to the first direction; and a connecting channel which is formed in the channel substrate. The second common channel is formed in the channel substrate. The descender penetrates the channel substrate in the second direction, and has an inner wall surface parallel to the second direction and to a third direction orthogonal to both of the first direction and the second direction. The connecting channel extends in a fourth direction which is orthogonal to the second direction and which is inclined with respect to the third direction.Type: ApplicationFiled: October 13, 2021Publication date: April 28, 2022Inventor: Toru KAKIUCHI
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Publication number: 20220126574Abstract: A liquid discharging head includes: a first common channel, a second common channel; and individual channels. The individual channels have: nozzles aligned in a first direction; pressure chambers; descenders formed in a channel substrate arranged between a nozzle plate and a pressure chamber plate in a second direction orthogonal to the first direction; and a connecting channel. The connecting channel has: a first channel part formed in the nozzle plate, and a second channel part formed in the channel substrate, connected to the first channel part and having a length in the second direction which is shorter than that of the second common channel. The second common channel is formed in the channel substrate, overlaps with the descenders in a third direction orthogonal to both of the first direction and the second direction, and is partitioned from the descenders by a partition wall formed by the channel substrate.Type: ApplicationFiled: October 13, 2021Publication date: April 28, 2022Inventor: Toru KAKIUCHI
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Publication number: 20220126578Abstract: There is provided a liquid discharge head including: a plurality of first individual channels; a first supply manifold; a first return manifold; a plurality of second individual channels; a second supply manifold; a second return manifold; and a first bypass channel communicating the first supply manifold and the second return manifold. The first bypass channel includes: a first supply connecting channel, a first return connecting channel, and a first connecting channel. Channel resistance in one of the first supply connecting channel and the first return connecting channel is greater than channel resistance in the first connecting channel.Type: ApplicationFiled: September 23, 2021Publication date: April 28, 2022Inventors: Shotaro KANZAKI, Toru KAKIUCHI, Takaaki YOSHINO, Taisuke MIZUNO, Jiro YAMAMOTO
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Patent number: 11273641Abstract: A piezoelectric actuator includes a common electrode, an individual electrode, a first conductive pattern, a second conductive pattern, and a third conductive pattern. The first conductive pattern electrically connects to the common electrode. The second conductive pattern does not electrically connect to either the common electrode or the individual electrode. The third conductive pattern electrically connects to the individual electrode. The first conductive pattern and the third conductive pattern are opposite to each other relative to the second conductive pattern.Type: GrantFiled: March 30, 2020Date of Patent: March 15, 2022Assignee: Brother Kogyo Kabushiki KaishaInventor: Toru Kakiuchi
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Patent number: 11258003Abstract: A piezoelectric actuator includes: a plurality of discrete electrodes, which is disposed on one side of a piezoelectric element; a common electrode, which is disposed on the other side of the piezoelectric element; a plurality of discrete contacts, which are respectively connected to the plurality of discrete electrodes, and wherein the plurality of discrete electrodes include: a first discrete electrode; and a second discrete electrode, which is disposed at a position away from a corresponding discrete contact as compared with the first discrete electrode, wherein the common electrode includes: a first common electrode, which faces the first discrete electrode in the thickness direction; and a second common electrode, which is separated from the first common electrode in the surface direction and faces the second discrete electrode in the thickness direction, and wherein a connection wiring is provided to connect the first common electrode with the second common electrode.Type: GrantFiled: March 23, 2018Date of Patent: February 22, 2022Assignee: Brother Kogyo Kabushiki KaishaInventors: Toru Kakiuchi, Keita Hirai
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Patent number: 11230104Abstract: A liquid discharging head includes: a channel unit having a liquid channel which includes: a nozzle arranged at an end part, of the channel unit, on one side in a first direction; and a pressure chamber arranged at an end part, of the channel unit, on the other side in the first direction and communicating with the nozzle; and a piezoelectric element including: a vibration plate arranged on a surface, of the channel unit, on the other side in the first direction and covering the pressure chamber; and a piezoelectric layer arranged on a surface, of the vibration plate, on the other side in the first direction. An area, of the pressure chamber, which is projected in the first direction is not more than 50000 ?m2, and a diameter of the nozzle is increased from the one side toward the other side in the first direction.Type: GrantFiled: October 19, 2020Date of Patent: January 25, 2022Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventor: Toru Kakiuchi
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Publication number: 20210370672Abstract: A liquid droplet discharging head includes a channel unit having nozzles and pressure chambers in respective communication with the nozzles, and a piezoelectric element having a vibration plate arranged on an upper surface of the channel unit to cover the pressure chambers and a piezoelectric layer arranged on an upper surface of the vibration plate. The pressure chambers have a length L longer than its width, and the channel unit has the nozzles and the pressure chambers aligned at a density of 300 dpi or higher in a conveyance direction. The length L of the pressure chambers and the diameter D of nozzle holes of the nozzles satisfy this relation or condition: 35?L/D?50.Type: ApplicationFiled: May 26, 2021Publication date: December 2, 2021Inventors: Toru Kakiuchi, Taisuke Mizuno
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Publication number: 20210331472Abstract: There is provided a liquid discharge head, including: a plurality of inlet parts provided corresponding to a plurality of kinds of liquids; a plurality of pressure chambers in which discharge pressure is applied to the liquids; a plurality of individual outlet parts through which the liquids are supplied to the plurality of pressure chambers; and a manifold which communicates with the plurality of inlet parts, and through which the liquids from the plurality of inlet parts are supplied to the plurality of individual outlet parts. The manifold includes: a plurality of upstream-side portions in each of which a channel corresponding to one of the plurality of inlet parts is defined, and a downstream-side portion which communicates with the plurality of upstream-side portions, and in which a channel communicating with the plurality of individual outlet parts is defined.Type: ApplicationFiled: April 22, 2021Publication date: October 28, 2021Inventors: Shingo Katayama, Toru Kakiuchi
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Publication number: 20210252863Abstract: There is provided a liquid discharge head, including: a pressure chamber connected to a nozzle from which a liquid is discharged; an actuator configured to apply discharge pressure to the liquid in the pressure chamber; a first supply channel which is connected to the pressure chamber, and through which a first liquid is supplied to the pressure chamber; a second supply channel, different from the first channel, which is connected to the pressure chamber, and through which a second liquid different from the first liquid is supplied to the pressure chamber; a first valve which is disposed in the first supply channel, and by which the first supply channel is opened and closed; and a second valve which is disposed in the second supply channel, and by which the second supply channel is opened and closed.Type: ApplicationFiled: February 16, 2021Publication date: August 19, 2021Inventors: Shingo Katayama, Toru Kakiuchi
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Patent number: 11072172Abstract: A liquid discharging head includes a channel member having a nozzle surface formed with first nozzles, second nozzles, third nozzles and fourth nozzles. The channel member is formed with: a first distributing channel communicating with a first storage chamber and extending in a first direction, a second distributing channel communicating with a second storage chamber, extending in the first direction, and arranged side by side to the first distributing channel in a second direction, a first common channel communicating with the first nozzles, a second common channel communicating with the second nozzles, a third common channel communicating with the third nozzles, and a fourth common channel communicating with the fourth nozzles. The first to fourth common channels each extend in a third direction crossing the first and second directions, and partially overlaps with the first and second distributing channels in a fourth direction orthogonal to the nozzle surface.Type: GrantFiled: August 22, 2019Date of Patent: July 27, 2021Assignee: Brother Kogyo Kabushiki KaishaInventors: Toru Kakiuchi, Yasuo Kato, Yuichi Ito
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Patent number: 11056812Abstract: An actuator device includes: an actuator including first contacts arranged in a first direction; and a wire member including second contacts and joined to the actuator. The second contacts are arranged in the first direction and respectively connected to the first contacts. Each of particular contacts as the first contacts or the second contacts has a protruding and recessed portion including: at least two protrusions; and a recess between the at least two protrusions. The particular contacts include: at least one central-region contact disposed on a central region in the first direction; and at least one end-region contact disposed nearer to an end region than to the central region in the first direction. The protruding and recessed portion of each of the at least one central-region contact is different in shape from the protruding and recessed portion of each of the at least one end-region contact.Type: GrantFiled: August 7, 2018Date of Patent: July 6, 2021Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Toru Kakiuchi, Yasuo Kato, Rui Wang, Yuichi Ito
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Publication number: 20210197565Abstract: A liquid discharge head includes a common flow channel extending along a first direction, and individual flow channels arranged along the first direction. Each individual flow channel includes a first pressure chamber and a second pressure chamber arranged along the first direction, each of which communicates with the common flow channel, a nozzle located away from the first and second pressure chambers in a second direction orthogonal to the first direction, and a connection flow channel connecting the first pressure chamber, the second pressure chamber, and the nozzle with each other. One end of the connection flow channel in the second direction communicates with the first pressure chamber and the second pressure chamber, and the other end thereof in the second direction communicates with the nozzle. The connection flow channel extends along the second direction from the one end to the other end thereof in the second direction.Type: ApplicationFiled: December 23, 2020Publication date: July 1, 2021Inventors: Taiki Tanaka, Toru Kakiuchi
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Patent number: 11031538Abstract: An actuator device includes: an actuator including a first contact; and a wire member including a second contact connected to the first contact with a conductive adhesive including a conductive particle. One of the first contact and the second contact is a particular contact. The other of the first contact and the second contact is a specific contact. At least two protrusions and at least one recess are formed on and in the particular contact. The at least two protrusions are arranged in a first direction. The at least one recess is interposed between the at least two protrusions. The particular contact is joined to the specific contact with the conductive adhesive provided in the at least one recess, in a state in which each of the at least two protrusions is in contact with the specific contact.Type: GrantFiled: June 18, 2020Date of Patent: June 8, 2021Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventor: Toru Kakiuchi
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Publication number: 20210155000Abstract: A liquid discharging head includes: a channel unit having a liquid channel which includes: a nozzle arranged at an end part, of the channel unit, on one side in a first direction; and a pressure chamber arranged at an end part, of the channel unit, on the other side in the first direction and communicating with the nozzle; and a piezoelectric element including: a vibration plate arranged on a surface, of the channel unit, on the other side in the first direction and covering the pressure chamber; and a piezoelectric layer arranged on a surface, of the vibration plate, on the other side in the first direction. An area, of the pressure chamber, which is projected in the first direction is not more than 50000 ?m2, and a diameter of the nozzle is increased from the one side toward the other side in the first direction.Type: ApplicationFiled: October 19, 2020Publication date: May 27, 2021Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventor: Toru KAKIUCHI
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Patent number: 10978633Abstract: An actuator device is provided. The actuator device includes: a first substrate including a contact; and a second substrate including a trace electrically connected to the contact. A portion of the second substrate is laminated to the first substrate in a first direction. The portion of the second substrate is adhered to the first substrate. A portion of the trace overlaps the contact in the first direction. A portion of the trace includes a plurality of terminals and a base section. The plurality of terminals are separated from each other. The base section is coupled to the plurality of terminals.Type: GrantFiled: March 8, 2018Date of Patent: April 13, 2021Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventor: Toru Kakiuchi
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Publication number: 20210057636Abstract: An actuator device includes: an actuator including piezoelectric elements arranged in a first direction and first contacts arranged in the first direction; a protector including a first wall opposed to the piezoelectric elements and a second wall coupled to the first wall and joined to a region of the actuator at which the first contacts are disposed; first connection terminals disposed on the first; and first through electrodes formed in the second wall to bring the first contacts and the first connection terminals into conduction with each other. A distance between two of the first through electrodes which respectively correspond to two of the piezoelectric elements which are adjacent to each other in the first direction is greater than a distance in the first direction between the two of the piezoelectric elements which are adjacent to each other in the first direction.Type: ApplicationFiled: November 10, 2020Publication date: February 25, 2021Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Toru KAKIUCHI, Yasuo KATO, Rui WANG, Yuichi ITO
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Patent number: 10913275Abstract: There is provided a method of manufacturing a liquid discharge head, including: forming a stacked body having a structure and a protective member stacked on the structure, providing a first mask on an upper surface of the protective member to cover a through hole; forming a protective film by an atomic layer deposition on a surface defining a liquid flow channel of the stacked body provided with the first mask; and removing the first mask after forming the protective film.Type: GrantFiled: December 6, 2018Date of Patent: February 9, 2021Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Toru Kakiuchi, Yasuo Kato, Yuichi Ito