Patents by Inventor Toshimichi ODAKA
Toshimichi ODAKA 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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Patent number: 11141976Abstract: A liquid discharge head includes a nozzle, a cover, a connector board, and a cap. The nozzle is configured to discharge liquid. The cover covers at least a part of the liquid discharge head except the nozzle. The connector board includes a connector, and a first engaging portion. The connector is detachably connected to a wiring component. The first engaging portion is configured to engage the cover in a first direction. The cap is detachably attached to the cover. The cap includes an opening and a second engaging portion. The opening is configured to engage at least one of the connector and the connector board in a second direction intersecting the first direction and expose at least a part of the connector. The second engaging portion is configured to engage the cover in a third direction.Type: GrantFiled: February 25, 2020Date of Patent: October 12, 2021Assignee: RICOH COMPANY, LTD.Inventors: Toshimichi Odaka, Yoshitaka Fujinuma, Koji Kawahara
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Publication number: 20200276818Abstract: A liquid discharge head includes a nozzle, a cover, a connector board, and a cap. The nozzle is configured to discharge liquid. The cover covers at least a part of the liquid discharge head except the nozzle. The connector board includes a connector, and a first engaging portion. The connector is detachably connected to a wiring component. The first engaging portion is configured to engage the cover in a first direction. The cap is detachably attached to the cover. The cap includes an opening and a second engaging portion. The opening is configured to engage at least one of the connector and the connector board in a second direction intersecting the first direction and expose at least a part of the connector. The second engaging portion is configured to engage the cover in a third direction.Type: ApplicationFiled: February 25, 2020Publication date: September 3, 2020Inventors: Toshimichi ODAKA, Yoshitaka FUJINUMA, Koji KAWAHARA
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Patent number: 10737491Abstract: A liquid discharge head includes a plurality of nozzles, a plurality of individual liquid chambers, a common supply channel, and a common collection channel. The plurality of nozzles discharges a liquid. The plurality of individual liquid chambers communicates with the plurality of nozzles, respectively. The common supply channel communicates with the plurality of individual liquid chambers. The common collection channel communicates with the plurality of individual liquid chambers. At least a part of at least one of the common supply channel and the common collection channel is disposed at a position overlapping with the plurality of individual liquid chambers when the plurality of individual liquid chambers is projected in a vertical direction.Type: GrantFiled: February 13, 2019Date of Patent: August 11, 2020Assignee: Ricoh Company, Ltd.Inventors: Toshimichi Odaka, Takahiro Yoshida, Takakazu Kihira
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Patent number: 10399355Abstract: A liquid discharge head includes a plurality of nozzles to discharge a liquid, a plurality of individual chambers communicating with the plurality of nozzles, a plurality of discharge channels communicating with the plurality of individual chambers, a plurality of supply-side common chambers connected to the plurality of individual chambers, and a plurality of discharge-side common chambers connected to the plurality of discharge channels. The plurality of discharge-side common chamber has a same fluid resistance.Type: GrantFiled: January 25, 2018Date of Patent: September 3, 2019Assignee: Ricoh Company, Ltd.Inventors: Takayuki Nakai, Toshimichi Odaka, Takakazu Kihira, Takahiro Yoshida, Shiomi Andou, Yukio Otome, Katsuya Ishii
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Publication number: 20190263119Abstract: A liquid discharge head includes a plurality of nozzles, a plurality of individual liquid chambers, a common supply channel, and a common collection channel. The plurality of nozzles discharges a liquid. The plurality of individual liquid chambers communicates with the plurality of nozzles, respectively. The common supply channel communicates with the plurality of individual liquid chambers. The common collection channel communicates with the plurality of individual liquid chambers. At least a part of at least one of the common supply channel and the common collection channel is disposed at a position overlapping with the plurality of individual liquid chambers when the plurality of individual liquid chambers is projected in a vertical direction.Type: ApplicationFiled: February 13, 2019Publication date: August 29, 2019Inventors: Toshimichi Odaka, Takahiro Yoshida, Takakazu Kihira
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Patent number: 10259231Abstract: A liquid discharge head, includes a nozzle from which liquid is discharged, an individual chamber communicating with the nozzle, a supply channel communicating with the individual chamber, the liquid flowing through the supply channel in a first direction, and a filter disposed upstream of the supply channel, the liquid filtering through the filter in a second direction. The first direction intersects the second direction, and the supply channel includes an inlet disposed at a position overlapping the filter in the second direction.Type: GrantFiled: March 14, 2018Date of Patent: April 16, 2019Assignee: Ricoh Company, Ltd.Inventors: Toshimichi Odaka, Takahiro Yoshida, Takakazu Kihira, Takayuki Nakai
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Patent number: 10207509Abstract: A liquid discharge head includes a nozzle, an individual liquid chamber, and a circulation channel. The nozzle discharges liquid. The individual liquid chamber is communicated with the nozzle. The circulation channel is communicated with the individual liquid chamber. A first direction in which liquid flows in the individual liquid chamber crosses a second direction in which liquid flows in the circulation channel. A liquid-inflow-side opening of the nozzle faces an area in which a flow of liquid changes from the first direction to the second direction.Type: GrantFiled: September 7, 2016Date of Patent: February 19, 2019Assignee: RICOH COMPANY, LTD.Inventors: Toshimichi Odaka, Takahiro Yoshida, Takayuki Nakai
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Patent number: 10179452Abstract: A liquid discharge head includes a plurality of nozzles from which liquid is discharged, a plurality of individual-liquid-chambers communicating with the plurality of nozzles, respectively, a plurality of individual-drainage-channels communicating with the plurality of individual-liquid-chambers, respectively, a drainage-side common-liquid-chamber communicating with each of the plurality of individual-drainage-channels, a filter having filter holes and disposed between the plurality of individual-drainage-channels and the drainage-side common-liquid-chamber, and an intermediate-drainage-channel disposed between the filter and the plurality of individual-drainage-channels. The intermediate-drainage-channel faces the filter and communicates with two or more of the plurality of individual-drainage-channels.Type: GrantFiled: December 18, 2017Date of Patent: January 15, 2019Assignee: Ricoh Company, Ltd.Inventors: Masami Iwama, Yukio Otome, Takahiro Yoshida, Takakazu Kihira, Takayuki Nakai, Shiomi Andou, Isamu Suzuki, Ryuji Yoshida, Kanshi Abe, Junichi Iwata, Katsuya Ishii, Toshimichi Odaka
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Patent number: 10160216Abstract: A droplet discharge head includes a plurality of discharge orifices, a plurality of pressure generation chambers, a supply liquid chamber, a plurality of supply channels, a circulation liquid chamber, and a plurality of circulation channels. The discharge orifices discharge droplets. The pressure generation chambers are communicated with the discharge orifices, to apply pressure to liquid in the pressure generation chambers. The supply liquid chamber stores liquid to be supplied to the pressure generation chambers. The supply channels are communicated with the pressure generation chambers. The circulation liquid chamber receives liquid collected from the pressure generation chambers. The circulation channels communicate the pressure generation chambers with the circulation liquid chamber.Type: GrantFiled: October 25, 2016Date of Patent: December 25, 2018Assignee: RICOH COMPANY, LTD.Inventors: Takayuki Nakai, Takahiro Yoshida, Shiomi Andou, Toshimichi Odaka, Kanshi Abe
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Publication number: 20180272730Abstract: A liquid discharge head, includes a nozzle from which liquid is discharged, an individual chamber communicating with the nozzle, a supply channel communicating with the individual chamber, the liquid flowing through the supply channel in a first direction, and a filter disposed upstream of the supply channel, the liquid filtering through the filter in a second direction. The first direction intersects the second direction, and the supply channel includes an inlet disposed at a position overlapping the filter in the second direction.Type: ApplicationFiled: March 14, 2018Publication date: September 27, 2018Inventors: Toshimichi ODAKA, Takahiro YOSHIDA, Takakazu KIHIRA, Takayuki NAKAI
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Publication number: 20180272743Abstract: A liquid discharge head includes a plurality of nozzles to discharge a liquid, a plurality of individual chambers communicating with the plurality of nozzles, a plurality of discharge channels communicating with the plurality of individual chambers, a plurality of supply-side common chambers connected to the plurality of individual chambers, and a plurality of discharge-side common chambers connected to the plurality of discharge channels. The plurality of discharge-side common chamber has a same fluid resistance.Type: ApplicationFiled: January 25, 2018Publication date: September 27, 2018Inventors: Takayuki Nakai, Toshimichi Odaka, Takakazu Kihira, Takahiro Yoshida, Shiomi Andou, Yukio Otome, Katsuya Ishii
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Publication number: 20180194135Abstract: A liquid discharge head includes a plurality of nozzles from which liquid is discharged, a plurality of individual-liquid-chambers communicating with the plurality of nozzles, respectively, a plurality of individual-drainage-channels communicating with the plurality of individual-liquid-chambers, respectively, a drainage-side common-liquid-chamber communicating with each of the plurality of individual-drainage-channels, a filter having filter holes and disposed between the plurality of individual-drainage-channels and the drainage-side common-liquid-chamber, and an intermediate-drainage-channel disposed between the filter and the plurality of individual-drainage-channels. The intermediate-drainage-channel faces the filter and communicates with two or more of the plurality of individual-drainage-channels.Type: ApplicationFiled: December 18, 2017Publication date: July 12, 2018Inventors: Masami IWAMA, Yukio OTOME, Takahiro YOSHIDA, Takakazu KIHIRA, Takayuki NAKAI, Shiomi ANDOU, Isamu SUZUKI, Ryuji YOSHIDA, Kanshi ABE, Junichi IWATA, Katsuya ISHll, Toshimichi ODAKA
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Patent number: 9815285Abstract: A liquid discharge head includes a channel plate. The channel plate includes a fluid restrictor, a channel, a first plate member, and a second plate member. The channel is disposed on at least one of an upstream side and a downstream side of the fluid restrictor in a direction of flow of liquid. The channel has a greater width than a width of the fluid restrictor in a direction perpendicular to the direction of flow of liquid in an in-plane direction. The first plate member has a through hole including at least one broad portion and a narrow portion. The narrow portion is the fluid restrictor. The second plate member includes at least one through hole constituting part of the channel with the broad portion. The through hole is disposed opposite an end of the narrow portion at which the narrow portion is connected to the broad portion.Type: GrantFiled: November 22, 2016Date of Patent: November 14, 2017Assignee: RICOH COMPANY, LTD.Inventors: Yukio Otome, Takahiro Yoshida, Takayuki Nakai, Shiomi Andou, Kanshi Abe, Kenshiroh Munetomo, Toshimichi Odaka
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Publication number: 20170157924Abstract: A liquid discharge head includes a channel plate. The channel plate includes a fluid restrictor, a channel, a first plate member, and a second plate member. The channel is disposed on at least one of an upstream side and a downstream side of the fluid restrictor in a direction of flow of liquid. The channel has a greater width than a width of the fluid restrictor in a direction perpendicular to the direction of flow of liquid in an in-plane direction. The first plate member has a through hole including at least one broad portion and a narrow portion. The narrow portion is the fluid restrictor. The second plate member includes at least one through hole constituting part of the channel with the broad portion. The through hole is disposed opposite an end of the narrow portion at which the narrow portion is connected to the broad portion.Type: ApplicationFiled: November 22, 2016Publication date: June 8, 2017Applicant: RICOH COMPANY, LTD.Inventors: Yukio OTOME, Takahiro YOSHIDA, Takayuki NAKAI, Shiomi ANDOU, Kanshi ABE, Kenshiroh MUNETOMO, Toshimichi ODAKA
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Publication number: 20170120602Abstract: A droplet discharge head includes a plurality of discharge orifices, a plurality of pressure generation chambers, a supply liquid chamber, a plurality of supply channels, a circulation liquid chamber, and a plurality of circulation channels. The discharge orifices discharge droplets. The pressure generation chambers are communicated with the discharge orifices, to apply pressure to liquid in the pressure generation chambers. The supply liquid chamber stores liquid to be supplied to the pressure generation chambers. The supply channels are communicated with the pressure generation chambers. The circulation liquid chamber receives liquid collected from the pressure generation chambers. The circulation channels communicate the pressure generation chambers with the circulation liquid chamber.Type: ApplicationFiled: October 25, 2016Publication date: May 4, 2017Applicant: RICOH COMPANY, LTD.Inventors: Takayuki NAKAI, Takahiro YOSHIDA, Shiomi ANDOU, Toshimichi ODAKA, Kanshi ABE
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Publication number: 20170096015Abstract: A liquid discharge head includes a nozzle, an individual liquid chamber, and a circulation channel. The nozzle discharges liquid. The individual liquid chamber is communicated with the nozzle. The circulation channel is communicated with the individual liquid chamber. A first direction in which liquid flows in the individual liquid chamber crosses a second direction in which liquid flows in the circulation channel. A liquid-inflow-side opening of the nozzle faces an area in which a flow of liquid changes from the first direction to the second direction.Type: ApplicationFiled: September 7, 2016Publication date: April 6, 2017Applicant: RICOH COMPANY, LTD.Inventors: Toshimichi ODAKA, Takahiro YOSHIDA, Takayuki NAKAI