Patents by Inventor Yoshio Miyazawa
Yoshio Miyazawa 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: 9464201Abstract: A non-aqueous ink jet ink composition according to an embodiment is stored in an ink storage body, in which a solvent contained in an ink composition is configured with an organic solvent, and a dissolved oxygen concentration in the ink composition is in a range of 30% to 80% of a saturated dissolved oxygen concentration in room temperature.Type: GrantFiled: March 26, 2015Date of Patent: October 11, 2016Assignee: Seiko Epson CorporationInventor: Yoshio Miyazawa
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Publication number: 20150275002Abstract: A non-aqueous ink jet ink composition according to an embodiment is stored in an ink storage body, in which a solvent contained in an ink composition is configured with an organic solvent, and a dissolved oxygen concentration in the ink composition is in a range of 30% to 80% of a saturated dissolved oxygen concentration in room temperature.Type: ApplicationFiled: March 26, 2015Publication date: October 1, 2015Inventor: Yoshio MIYAZAWA
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Patent number: 8809242Abstract: A lubricant member of a preferred embodiment of the invention is formed, into a stick-shaped body longer in a lengthwise direction than in a diametrical direction, of a mixture including at least a polyamide resin as a thermoplastic resin, an ultrahigh molecular weight polyethylene, and lubricant oil. A film made mainly of the polyamide resin is formed in the outer peripheral surface of the lubricant member. At the inner side of the film, fibrous crystals of the polyamide resin and the ultrahigh molecular weight polyethylene extend in the lengthwise direction of the lubricant member, and multiple pores are formed. With this structure, the lubricant member is produced with excellent workability without sacrificing the mechanical strength and the lubricating property.Type: GrantFiled: October 24, 2011Date of Patent: August 19, 2014Assignee: Takano Co., Ltd.Inventors: Eiji Takano, Yoshio Miyazawa, Kazuo Negishi
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Patent number: 8485625Abstract: A fluid ejecting apparatus includes a drive element that performs a driving operation when a drive waveform is applied thereto and causes a nozzle to eject fluid. A drive signal generating unit generates a first drive signal having a first drive waveform at a front section of a predetermined period and a second drive waveform at a rear section thereof. A second drive signal has a third drive waveform at a front section of the predetermined period and a fourth drive waveform at a rear section thereof. A control unit applies the first drive waveform to the drive element, which then performs a first operation, applies the fourth drive waveform to the drive element, which then performs a second operation, and applies the second drive waveform to the drive element after applying the third drive waveform thereto, so that the drive element performs a third operation.Type: GrantFiled: November 11, 2009Date of Patent: July 16, 2013Assignee: Seiko Epson CorporationInventors: Yoshio Miyazawa, Toshiki Usui
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Patent number: 8235512Abstract: A liquid container includes a liquid-containing bag filled with liquid and having a supply port that discharges the liquid; an outer frame accommodating the liquid-containing bag; a detecting plate fixed on the liquid-containing bag for detection of a liquid-exhausted state; and at least one protrusion disposed on the outer frame. The protrusion regulates transfer of the detecting plate in a direction along which the liquid-containing bag is compressed when the amount of the liquid remaining in the liquid-containing bag becomes small, and ensures a space through which the liquid can flow in the liquid-containing bag.Type: GrantFiled: January 31, 2007Date of Patent: August 7, 2012Assignee: Seiko Epson CorporationInventors: Masahiro Nakamura, Seiji Mochizuki, Yoshio Miyazawa
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Publication number: 20120108474Abstract: A lubricant member of a preferred embodiment of the invention is formed, into a stick-shaped body longer in a lengthwise direction than in a diametrical direction, of a mixture including at least a polyamide resin as a thermoplastic resin, an ultrahigh molecular weight polyethylene, and lubricant oil. A film made mainly of the polyamide resin is formed in the outer peripheral surface of the lubricant member. At the inner side of the film, fibrous crystals of the polyamide resin and the ultrahigh molecular weight polyethylene extend in the lengthwise direction of the lubricant member, and multiple pores are formed. With this structure, the lubricant member is produced with excellent workability without sacrificing the mechanical strength and the lubricating property.Type: ApplicationFiled: October 24, 2011Publication date: May 3, 2012Applicant: Takano Co., LimitedInventors: Eiji TAKANO, Yoshio Miyazawa, Kazuo Negishi
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Publication number: 20100118075Abstract: A fluid ejecting apparatus includes a drive element that performs a driving operation when a drive waveform is applied thereto and causes a nozzle to eject fluid. A drive signal generating unit generates a first drive signal having a first drive waveform at a front section of a predetermined period and a second drive waveform at a rear section thereof. A second drive signal has a third drive waveform at a front section of the predetermined period and a fourth drive waveform at a rear section thereof. A control unit applies the first drive waveform to the drive element, which then performs a first operation, applies the fourth drive waveform to the drive element, which then performs a second operation, and applies the second drive waveform to the drive element after applying the third drive waveform thereto, so that the drive element performs a third operation.Type: ApplicationFiled: November 11, 2009Publication date: May 13, 2010Applicant: SEIKO EPSON CORPORATIONInventors: Yoshio MIYAZAWA, Toshiki USUI
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Publication number: 20070176988Abstract: A liquid container includes a liquid-containing bag filled with liquid and having a supply port that discharges the liquid; an outer frame accommodating the liquid-containing bag; a detecting plate fixed on the liquid-containing bag for detection of a liquid-exhausted state; and at least one protrusion disposed on the outer frame. The protrusion regulates transfer of the detecting plate in a direction along which the liquid-containing bag is compressed when the amount of the liquid remaining in the liquid-containing bag becomes small, and ensures a space through which the liquid can flow in the liquid-containing bag.Type: ApplicationFiled: January 31, 2007Publication date: August 2, 2007Applicant: Seiko Epson CorporationInventors: Masahiro Nakamura, Seiji Mochizuki, Yoshio Miyazawa
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Patent number: 7237880Abstract: It is an object to provide a liquid storage bag and a liquid ejection apparatus for accurately setting the relative position between storage means of data of the liquid consumption amount, etc., and a data transfer section. A flexible bag main body 2 is provided with a liquid supply port 4, storage means 17 for storing data of the liquid type, the storage capacity, the consumption amount, etc., is provided in a part of the bag main body 2, an interface section 54 for making it possible to transfer data between a data transfer section 34 placed in a part of a case 5 or an apparatus main unit 12 and the storage means 17 is attached to a part of the bag main body 2, and position correction means 43 capable of correcting the position of the interface section 54 is provided. In doing so, the position of the interface section 54 relative to the data transfer section 34 is adjusted with the bag main body 2 housed in the case 5, and data transfer in the data transfer section 34 is established precisely.Type: GrantFiled: October 23, 2003Date of Patent: July 3, 2007Assignee: Seiko Epson CorporationInventors: Yoshio Miyazawa, Masanori Kobayashi, Masahiro Nakamura, Seiji Mochizuki, Kazuo Koshino
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Publication number: 20050243148Abstract: It is an object to provide a liquid storage bag and a liquid ejection apparatus for accurately setting the relative position between storage means of data of the liquid consumption amount, etc., and a data transfer section. A flexible bag main body 2 is provided with a liquid supply port 4, storage means 17 for storing data of the liquid type, the storage capacity, the consumption amount, etc., is provided in a part of the bag main body 2, an interface section 54 for making it possible to transfer data between a data transfer section 34 placed in a part of a case 5 or an apparatus main unit 12 and the storage means 17 is attached to a part of the bag main body 2, and position correction means 43 capable of correcting the position of the interface section 54 is provided. In doing so, the position of the interface section 54 relative to the data transfer section 34 is adjusted with the bag main body 2 housed in the case 5, and data transfer in the data transfer section 34 is established precisely.Type: ApplicationFiled: October 23, 2003Publication date: November 3, 2005Inventors: Yoshio Miyazawa, Masanori Kobayashi, Masahiro Nakamura, Seiji Mochizuki, Kazuo Koshino
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Patent number: 6270210Abstract: A method of constructing an ink cartridge is disclosed. The method comprises the steps of: providing an ink bag with an ink supply port at one end and an ink charge opening at an opposite end thereof; then affixing a back member to an external flat side of the ink bag; then suspending the ink bag with the ink supply port facing downward and charging a predetermined amount of ink into the ink bag via the ink charge opening; then permanently sealing the ink charge opening; keeping the ink bag flat with the back member; and affixing the back member to the bottom of a case main body.Type: GrantFiled: April 24, 2000Date of Patent: August 7, 2001Assignee: Seiko Epson CorporationInventors: Shuichi Yamaguchi, Yoshio Miyazawa
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Patent number: 6053606Abstract: An ink cartridge including a flexible, rectangular ink bag located within a case main body which has a cover, wherein the ink bag is attached on one side to an ink depletion detecting plate which has a detecting piece and a plurality of projecting pieces. The projecting pieces extend from the outer edge of the ink bag and are capable of coming in contact with a side wall of the case main body when the cartridge is dropped or shaken and keep the deformation of the ink bag to a minimum thereby protecting the ink bag from damage during transportation.Type: GrantFiled: October 7, 1997Date of Patent: April 25, 2000Assignee: Seiko Epson CorporationInventors: Shuichi Yamaguchi, Yoshio Miyazawa
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Patent number: 6019465Abstract: A filter chamber having a portion inclined in relation to the horizontal direction is formed between an ink supply channel having one end communicating with an ink cartridge and a throughhole communicating with an ink-jet recording head, and a filter plate is placed in the filter chamber so as to diagonally traverse it, so that ink is allowed to pass through the whole surface of the filter plate.Type: GrantFiled: April 5, 1996Date of Patent: February 1, 2000Assignee: Seiko Epson CorporationInventors: Satoshi Shinada, Minoru Usui, Yoshio Miyazawa, Norihiko Kurashima, Takao Kobayashi, Munehide Kanaya
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Patent number: 5963234Abstract: A recess is formed in a surface confronting an actuator unit of an ink supply inlet forming substrate. When a flow path unit and the actuator unit are bonded together using a fusible film, thermally expanded air is released into the recess to thereby reduce pressure. Further, by arranging the recess at a position confronting a pressure generating chamber, an air layer formed by the recess is allowed to function as a vibration shielding member.Type: GrantFiled: August 20, 1996Date of Patent: October 5, 1999Assignee: Seiko Epson CorporationInventors: Yoshio Miyazawa, Minoru Usui, Fujio Akahane, Takahiro Katakura, Motonori Okumura, Tomoaki Abe
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Patent number: 5748214Abstract: An ink supply communication path is formed so that one end thereof is arranged outside a region confronting a pressure producing chamber at a region confronting a reservoir chamber; and an ink supply constricted port is arranged at a portion of the ink supply communication path, the portion being remotest from the pressure producing chamber. Since the pressure producing chamber is connected to the ink supply constricted port through the elongated ink supply communication path, a jet flow from the ink supply constricted port grows into a large flow along the ink supply communication path, which in turn allows air bubbles susceptible to stagnation in the vicinity of the ink supply constricted port to be discharged by such large flow.Type: GrantFiled: August 3, 1995Date of Patent: May 5, 1998Assignee: Seiko Epson CorporationInventors: Minoru Usui, Kazuhiko Hara, Yoshio Miyazawa, Yuji Tanaka, Fujio Akahane, Takahiro Katakura, Shinri Sakai, Yasushi Kishida, Tomoaki Abe, Toshiki Usui, Takeo Seino, Yoshikatsu Yamamoto
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Patent number: D447513Type: GrantFiled: January 8, 1998Date of Patent: September 4, 2001Assignee: Seiko Epson CorporationInventors: Yoshio Miyazawa, Shuichi Yamaguchi