Patents Assigned to Seiko Epson Corporation (HQ)
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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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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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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: 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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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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Patent number: 7631964Abstract: A liquid jet head and apparatus prevent an increase in the viscosity of liquid in the liquid path during long term storage. The recording head has a liquid path unit 1 with nozzle openings 8, pressure generation chambers 7, liquid reservoirs 9, and a diaphragm 5, and a head case 2 bonded to the liquid path unit 1. A damper chamber 12 for releasing pressure change inside the liquid reservoir is formed at a part of the head case or seal plate 5 corresponding to the liquid reservoir 9. A release path 14B for releasing pressure in the damper chamber to the air is formed in the head case. A control path 14A communicating with the damper chamber and release path and having a specific flow resistance restricting dispersion of moisture vapor from the liquid is formed in the head case and/or seal plate.Type: GrantFiled: May 4, 2007Date of Patent: December 15, 2009Assignee: Seiko Epson Corporation (HQ)Inventor: Noriaki Okazawa
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Patent number: 7631969Abstract: A combined spectacle lens including a combination of a basic lens and an auxiliary lens, the basic lens formed with a progressive-power surface having a first power portion having a power for viewing an object at a predetermined distance, a second power portion having a power different from that in the first power portion, and a progressive portion in which the power is progressively changed from the first power portion to the second power portion on either one or both of refractive surfaces on an object side and an eyeball side, wherein a resultant power obtained by combining a basic lens power of the basic lens and an auxiliary lens power of the auxiliary lens is partly or entirely different from that of the basic lens power.Type: GrantFiled: February 1, 2006Date of Patent: December 15, 2009Assignee: Seiko Epson Corporation (HQ)Inventors: Toshihide Shinohara, Tadashi Kaga