Patents by Inventor Noriaki Okazawa
Noriaki Okazawa 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: 20160016412Abstract: A technique that can restrict an arrangement angle of a liquid cartridge before use in a packaged state is provided. A packaging body 10 of a cartridge 100 includes a bag-shaped member 20 and a box-shaped member 30. The bag-shaped member 20 houses the cartridge 100. The box-shaped member 30 houses the cartridge 100 housed in the bag-shaped member 20. The cartridge 100 has an atmosphere introduction hole 125b capable of introducing the atmosphere to the inside, and the box-shaped member 30 has a first side wall portion 36 located at a position opposed to the atmosphere introduction hole 125b. The first side wall portion 36 has a first and second outer wall surfaces 36a and 36b that intersect each other to constitute a projecting portion that projects outward. A third end side portion 23 of the bag-shaped member 20 is housed at a corner portion between the first and second outer wall surfaces 36a and 36b.Type: ApplicationFiled: July 16, 2015Publication date: January 21, 2016Applicant: SEIKO EPSON CORPORATIONInventors: Tadahiro MIZUTANI, Noriaki Okazawa, Hiroyuki Kobayashi
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Patent number: 9186902Abstract: A liquid containing vessel includes a liquid containing chamber configured to contain a liquid. The liquid containing chamber has a filter chamber with a filter through which the liquid is configured to pass, and a low pressure chamber having a pressure that is lower than atmospheric pressure.Type: GrantFiled: September 16, 2014Date of Patent: November 17, 2015Assignee: Seiko Epson CorporationInventors: Taku Ishizawa, Takumi Nagashima, Noriaki Okazawa
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Patent number: 9156271Abstract: A liquid jet apparatus is provided. The liquid jet apparatus includes a first damper chamber and a second damper chamber, a release path operatively associated with both the first damper chamber and the second damper chamber, and a control path connecting the first damper chamber, the second damper chamber, and the release path to each other.Type: GrantFiled: October 2, 2014Date of Patent: October 13, 2015Assignee: SEIKO EPSON CORPORATION (HQ)Inventor: Noriaki Okazawa
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Publication number: 20150284159Abstract: There is provided a protection member configured to protect a liquid supply unit air-tightly. A cartridge 100 has an ink supply port 112 formed in a bottom surface 101 and an air hole 128 formed in a top surface 102. A protection member 200 is configured to be attachable to the cartridge 100. The protection member 200 includes a film member 201 configured to seal the air hole 128, and a cap section 220 configured to seal the ink supply port 112. The cap section 220 has a columnar support portion 232 having an upper end surface 235 which the film member 201 is joined with. The columnar support portion 232 is provided in an area opposed to a left side surface 105 of the cartridge 100.Type: ApplicationFiled: March 31, 2015Publication date: October 8, 2015Inventors: Manabu Yamada, Noriaki Okazawa, Tadahiro Mizutani
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Publication number: 20150077487Abstract: A liquid containing vessel includes a liquid containing chamber configured to contain a liquid. The liquid containing chamber has a filter chamber with a filter through which the liquid is configured to pass, and a low pressure chamber having a pressure that is lower than atmospheric pressure.Type: ApplicationFiled: September 16, 2014Publication date: March 19, 2015Inventors: Taku ISHIZAWA, Takumi NAGASHIMA, Noriaki OKAZAWA
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Publication number: 20150029276Abstract: A liquid jet apparatus is provided. The liquid jet apparatus includes a first damper chamber and a second damper chamber, a release path operatively associated with both the first damper chamber and the second damper chamber, and a control path connecting the first damper chamber, the second damper chamber, and the release path to each other.Type: ApplicationFiled: October 2, 2014Publication date: January 29, 2015Applicant: SEIKO EPSON CORPORATIONInventor: Noriaki OKAZAWA
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Patent number: 8876271Abstract: A liquid jet apparatus is provided. The liquid jet apparatus includes a first damper chamber and a second damper chamber, a release path operatively associated with both the first damper chamber and the second damper chamber, and a control path connecting the first damper chamber, the second damper chamber, and the release path to each other.Type: GrantFiled: December 3, 2013Date of Patent: November 4, 2014Assignee: Seiko Epson CorporationInventor: Noriaki Okazawa
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Patent number: 8870348Abstract: A liquid ejecting head includes a flow path formation substrate on which individual flow paths communicating with nozzle openings for ejecting liquid are provided, a first member which is provided at one surface side of the flow path formation substrate and has pressure generation units for generating pressure change in liquid in the individual flow paths, and a second member which is provided at a surface side of the flow path formation substrate, which is opposite to the first member. Dummy flow paths are provided on the flow path formation substrate independently of the individual flow paths. Exposure portions which expose a part of wall surfaces of the flow path formation substrate which form the dummy flow paths, are provided at least one of the first member and the second member.Type: GrantFiled: May 22, 2012Date of Patent: October 28, 2014Assignee: Seiko Epson CorporationInventors: Manabu Munakata, Noriaki Okazawa
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Patent number: 8783840Abstract: A liquid jet apparatus is provided. The liquid jet apparatus includes a first damper chamber and a second damper chamber, a release path operatively associated with both the first damper chamber and the second damper chamber, and a control path connecting the first damper chamber, the second damper chamber, and the release path to each other.Type: GrantFiled: January 14, 2013Date of Patent: July 22, 2014Assignee: Seiko Epson Corporation (HQ)Inventor: Noriaki Okazawa
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Publication number: 20140085388Abstract: A liquid jet apparatus is provided. The liquid jet apparatus includes a first damper chamber and a second damper chamber, a release path operatively associated with both the first damper chamber and the second damper chamber, and a control path connecting the first damper chamber, the second damper chamber, and the release path to each other.Type: ApplicationFiled: December 3, 2013Publication date: March 27, 2014Applicant: SEIKO EPSON CORPORATIONInventor: Noriaki OKAZAWA
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Patent number: 8376540Abstract: A liquid jet apparatus is provided. The liquid jet apparatus includes a first damper chamber and a second damper chamber, a release path operatively associated with both the first damper chamber and the second damper chamber, and a control path connecting the first damper chamber, the second damper chamber, and the release path to each other.Type: GrantFiled: May 3, 2012Date of Patent: February 19, 2013Assignee: Seiko Epson Corporation (HQ)Inventor: Noriaki Okazawa
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Publication number: 20120299997Abstract: A liquid ejecting head includes a flow path formation substrate on which individual flow paths communicating with nozzle openings for ejecting liquid are provided, a first member which is provided at one surface side of the flow path formation substrate and has pressure generation units for generating pressure change in liquid in the individual flow paths, and a second member which is provided at a surface side of the flow path formation substrate, which is opposite to the first member. Dummy flow paths are provided on the flow path formation substrate independently of the individual flow paths. Exposure portions which expose a part of wall surfaces of the flow path formation substrate which form the dummy flow paths, are provided at least one of the first member and the second member.Type: ApplicationFiled: May 22, 2012Publication date: November 29, 2012Applicant: SEIKO EPSON CORPORATIONInventors: Manabu MUNAKATA, Noriaki OKAZAWA
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Publication number: 20120218358Abstract: A liquid jet apparatus is provided. The liquid jet apparatus includes a first damper chamber and a second damper chamber, a release path operatively associated with both the first damper chamber and the second damper chamber, and a control path connecting the first damper chamber, the second damper chamber, and the release path to each other.Type: ApplicationFiled: May 3, 2012Publication date: August 30, 2012Applicant: SEIKO EPSON CORPORATION (HQ)Inventor: Noriaki OKAZAWA
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Patent number: 8192007Abstract: A liquid jet apparatus is provided. The liquid jet apparatus includes a first damper chamber and a second damper chamber, a release path operatively associated with both the first damper chamber and the second damper chamber, and a control path connecting the first damper chamber, the second damper chamber, and the release path to each other.Type: GrantFiled: June 17, 2011Date of Patent: June 5, 2012Assignee: Seiko Epson Corporation (HQ)Inventor: Noriaki Okazawa
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Patent number: 8162449Abstract: A liquid ejecting head includes pressure generation elements that apply pressure change to liquid retained in corresponding pressure generation chambers to discharge the liquid from corresponding nozzle openings. Each of the pressure generation elements is fixed to a fixation plate. Nozzle lines include nozzle openings arrayed in a line. An electrical signal is sent through a flexible substrate from the outside to the pressure generation chambers. Pressure generation elements associated with the pressure generation chambers are fixed to the fixation plate, with the fixation plate being positioned between the pressure generation elements of each of two parallel nozzle lines. A wiring portion is formed at one end part of the fixation plate opposite to the other end that is closer to the pressure generation chambers. The flexible substrate is connected to the wiring portion.Type: GrantFiled: November 18, 2009Date of Patent: April 24, 2012Assignee: Seiko Epson CorporationInventor: Noriaki Okazawa
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Patent number: 8070268Abstract: A liquid ejecting head includes: a flow channel unit including a flow-channel-formed substrate that defines liquid flow channels including pressure chambers communicating with nozzle openings and a sealing plate formed with a diaphragm that varies the capacities of the pressure chambers and a liquid introduction hole, the sealing plate being joined to the flow-channel-formed substrate and defining lines of liquid flow channels including pressure chambers; and a head case including a storage chamber that accommodates a pressure generator for displacing the diaphragm and a case flow channel for supplying liquid to the liquid flow channel of the flow channel unit, the diaphragm being arranged at an opening of the storage chamber on the bottom surface side and the flow channel unit being joined to the head case in a state in which the case flow channel and the liquid flow channel are communicated with each other via the liquid introduction hole, and the sealing plate is formed of a composite plate member formed bType: GrantFiled: February 25, 2008Date of Patent: December 6, 2011Assignee: Seiko Epson CorporationInventors: Noriaki Okazawa, Fujio Akahane
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Publication number: 20110242240Abstract: A liquid jet apparatus is provided. The liquid jet apparatus includes a nozzle plate which has a nozzle opening communicating with a pressure generation chamber; a flow channel substrate which has a liquid reservoir supplying a liquid to a plurality of pressure generation chambers; and a seal plate which covers at least a part of the liquid reservoir and which has a first damper chamber and second damper chamber. The seal plate has a connection cavity which connects the first damper chamber with the second damper chamber, and the connection cavity is connected to a release path communicating with the air.Type: ApplicationFiled: June 17, 2011Publication date: October 6, 2011Applicant: SEIKO EPSON CORPORATION (HQ)Inventor: Noriaki Okazawa
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Publication number: 20110221822Abstract: A liquid ejection head and a liquid ejection apparatus improved in printing quality by reducing the occurrence of chipping at an opening edge of a positioning hole by a positioning pin are provided. The liquid ejection head includes a head body having a nozzle opening that discharges ink, a base plate provided with the positioning pin, and a positioning plate formed of a silicon substrate and provided with the positioning hole, and the head body is arranged at a predetermined position on the base plate by inserting the positioning pin through the positioning hole, and the opening edge of the positioning hole on the side from which the positioning pin is inserted is chamfered.Type: ApplicationFiled: January 20, 2011Publication date: September 15, 2011Applicant: SEIKO EPSON CORPORATIONInventors: Hiroyuki HAGIWARA, Noriaki OKAZAWA, Sumio ARAI, Yohei NODA
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Patent number: 7984982Abstract: A liquid jet apparatus is provided. The liquid jet apparatus includes a nozzle plate which has a nozzle opening communicating with a pressure generation chamber; a flow channel substrate which has a liquid reservoir supplying a liquid to a plurality of pressure generation chambers; and a seal plate which covers at least a part of the liquid reservoir and which has a first damper chamber and second damper chamber. The seal plate has a connection cavity which connects the first damper chamber with the second damper chamber, and the connection cavity is connected to a release path communicating with the air.Type: GrantFiled: October 30, 2009Date of Patent: July 26, 2011Assignee: Seiko Epson CorporationInventor: Noriaki Okazawa
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Patent number: D737135Type: GrantFiled: October 27, 2014Date of Patent: August 25, 2015Assignee: SEIKO EPSON CORPORATIONInventors: Tadahiro Mizutani, Noriaki Okazawa, Hiroyuki Kobayashi