Patents by Inventor Hisashi Miyazawa

Hisashi 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).

  • Publication number: 20040210424
    Abstract: An ink cartridge has pivotable levers connected to walls of a container, and both pawls and protruded guide portions formed on the levers. The pawls are engageable with an ink cartridge holder. The protruded guide portions contact the ink cartridge holder to move the levers in the opening direction. Further, protruded stopper portions are formed to permit pivoting movement of the levers to such a degree as to disengage the pawls from the ink cartridge holder.
    Type: Application
    Filed: May 7, 2004
    Publication date: October 21, 2004
    Inventors: Takeo Seino, Satoshi Shinada, Hisashi Miyazawa, Yasuto Sakai, Masaki Shimomura, Satoshi Nakata
  • Publication number: 20040201655
    Abstract: An ink cartridge for an ink jet recording device, includes: a container having an ink supply port; at least two ink chambers partitioned in the container, one being located substantially in an upper section and the other being located substantially in a lower section; an ink suction passage connecting a bottom region of the lower section ink chamber to a bottom region of the upper section ink chamber; and a negative pressure generating mechanism provided to a flow passage connecting the upper section ink chamber to the ink supply port.
    Type: Application
    Filed: April 29, 2004
    Publication date: October 14, 2004
    Inventors: Hisashi Miyazawa, Yasuto Sakai, Satoshi Shinada, Atsushi Kobayashi
  • Patent number: 6793330
    Abstract: An ink cartridge for an ink jet printer having a housing having at least one wall. The ink cartridge further has at least two ink chambers for containing different ink accommodated in the housing. Ink supply ports are formed in one wall of the housing within each of the ink chambers. Each of the ink supply ports has an inner opening and an outer opening. The distance from the inner opening of a first ink supply port to that of a second ink supply port adjacent to the first ink supply port is different from a second distance from the outer opening of the first ink supply opening to that of the second ink supply port.
    Type: Grant
    Filed: January 9, 2002
    Date of Patent: September 21, 2004
    Assignee: Seiko Epson Corp.
    Inventors: Minoru Usui, Satoshi Shinada, Takahiro Naka, Hisashi Miyazawa, Takeo Seino, Hisashi Koike, Takao Kobayashi
  • Patent number: 6786581
    Abstract: An ink cartridge for a printing apparatus providing ink to a print head through a tapered ink supply needle and removably attached to the print head. The ink cartridge includes an ink chamber for containing ink, an ink supply port, a packing member and a valve device. The ink supply port supplies ink from the ink chamber to the print head of the printing apparatus, the ink supply port including an external opening. The packing member is provided in the ink supply port and forms an ink channel for allowing a flow of ink. The packing member seals the ink supply needle of the printing apparatus by fitting therewith. The valve device is contained in the ink supply port and elastically abuts against the packing member. The valve device selectively opens and closes the ink channel in conjunction with the ink supply needle.
    Type: Grant
    Filed: November 10, 1999
    Date of Patent: September 7, 2004
    Assignee: Seiko Epson Corporation
    Inventors: Satoshi Shinada, Takeo Seino, Hisashi Miyazawa, Koichi Toba, Takahiro Naka, Minoru Usui, Atsushi Kobayashi, Hitoshi Hayakawa
  • Publication number: 20040160481
    Abstract: An ink-jet recording device for supplying ink to a recording head from at least one ink cartridge having a bottom wall, and first and second side walls connected to each other through the bottom wall and facing each other, the ink cartridge further having an ink supply port at the bottom wall, a first retaining member extending from the first side wall and a recess provided in the vicinity of the second side wall, the retaining member having a first engagement portion displaceable toward and away from the first side wall.
    Type: Application
    Filed: February 13, 2004
    Publication date: August 19, 2004
    Inventors: Hisashi Miyazawa, Satoshi Shinada, Yasuto Sakai
  • Patent number: 6777736
    Abstract: The semiconductor device having the capacitor comprises a plurality of switching elements formed on a semiconductor substrate 1 at a distance, a plurality of capacitors formed in areas between a plurality of switching elements formed in the first direction respectively and each having a lower electrode, a dielectric film and an upper electrode, first wirings for connecting the upper electrodes of the capacitors and the switching elements in the first direction on a one-by-one base, and second wirings formed over a part of the first wirings, the switching elements, and the capacitors to extend in the second direction that intersects with the first direction. Accordingly, the higher speed operation than the prior art can be achieved.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: August 17, 2004
    Assignee: Fujitsu Limited
    Inventors: Kaoru Saigoh, Hisashi Miyazawa, Hirokazu Yamazaki, Hideaki Suzuki
  • Patent number: 6755515
    Abstract: An ink cartridge for an ink jet printer having a housing having at least one wall. The ink cartridge further has at least two ink chambers for containing different ink accommodated in the housing. Ink supply ports are formed in one wall of the housing within each of the ink chambers. Each of the ink supply ports has an inner opening and an outer opening. The distance from the inner opening of a first ink supply port to that of a second ink supply port adjacent to the first ink supply port is different from a second distance from the outer opening of the first ink supply opening to that of the second ink supply port.
    Type: Grant
    Filed: January 9, 2002
    Date of Patent: June 29, 2004
    Assignee: Seiko Epson Corporation
    Inventors: Minoru Usui, Satoshi Shinada, Takahiro Naka, Hisashi Miyazawa, Takeo Seino, Hisashi Koike, Takao Kobayashi, Masahiro Kanai, Yasuko Hirano, Yasushi Akatsuka, Takayuki Iljima, Noriaki Okazawa, Hitoshi Matsumoto, Yasuhiro Ogura
  • Patent number: 6748979
    Abstract: There is disclosed a fluid supply valve comprising a disc-shaped valve body which is equipped with a fluid supply port in the central portion thereof and composed of an elastic material whose peripheral portion is reinforced and fixed with a rigid material, the fluid supply port being closed when the valve body abuts against a fixed valve seat placed so as to be opposite to the fluid supply port, and being opened when the valve body is separated from the fixed valve seat, wherein the disc shaped valve body is equipped further with a thin walled portion in the intermediate annular portion between the fluid supply port and the peripheral portion in the radial direction, and/or with an inflectional portion in the radial direction between the fluid supply port and the peripheral portion.
    Type: Grant
    Filed: February 6, 2003
    Date of Patent: June 15, 2004
    Assignee: Bridgestone Corporation
    Inventors: Hisashi Miyazawa, Hirofumi Kikuchi, Youichi Nishimuro, Kunio Machida
  • Publication number: 20040085415
    Abstract: An ink cartridge may have an ink accommodating portion shaped to contain ink, an ink supply hole disposed at a bottom of the ink accommodating portion, and a valve unit including a movable valve portion and a fixed valve portion, the movable valve portion being oriented such that a flow of ink is regulated by a horizontal motion of the movable valve portion. The valve unit may further include a main portion and an auxiliary portion, the movable valve portion being disposed on the main portion and the fixed valve portion being disposed on the auxiliary portion, wherein the auxiliary portion is selectively detachable from the main portion. The ink cartridge may further comprise a supply hole attachment located at the bottom of the ink accommodating portion, the supply hole being defined in a selectively detachable supply hole attachment.
    Type: Application
    Filed: October 29, 2003
    Publication date: May 6, 2004
    Inventors: Takao Kobayashi, Hisashi Miyazawa
  • Publication number: 20040074804
    Abstract: An ink cartridge includes: an ink accommodating portion for holding ink; an air passage for making the ink accommodating portion communicate with the atmosphere; and a valve mechanism, provided in the air passage, including an air-releasing valve member for sealing a communication hole provided in a partition wall for separating an ink-accommodating-portion side that is a side close to the ink accommodating portion from an atmosphere side that is a side close to the atmosphere, in a direction from the ink-accommodating-portion side to the atmosphere side, wherein the air-releasing valve member has a contact portion for opening the air passage by receiving an external force from the atmosphere side to the ink-accommodating-portion side.
    Type: Application
    Filed: July 8, 2003
    Publication date: April 22, 2004
    Inventors: Koichi Toba, Satoshi Shinada, Hisashi Miyazawa
  • Patent number: 6722762
    Abstract: A recessed portion is formed in an ink cartridge 1 to define a three-dimensional space. Each of axes in the three-dimensional space containing one side surface of the ink cartridge in which an ink supply port 14 is formed is divided into a plurality of sections to obtain a plurality of coordinate points. Identification protruded portions 31-1 to 31-3 which serve as identification pieces are disposed selectively at the coordinate points in accordance with identification items.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: April 20, 2004
    Assignee: Seiko Epson Corporation
    Inventors: Hisashi Miyazawa, Satoshi Shinada, Yasuto Sakai
  • Publication number: 20040056936
    Abstract: A valve unit in an ink supply channel of an ink-jet recording apparatus, the ink supply channel having an upstream side and a downstream side, the valve unit comprising a diaphragm valve having a thin elastic diaphragm operating in response to pressure difference between an upstream side and a downstream side of the diaphragm, a valve body formed on the surface of the thin elastic diaphragm and having an opening therein, and an elastic support portion integrally formed with the valve body for urging the valve body toward the upstream direction, a valve seat disposed in the ink supply channel upstream of the diaphragm and kept in elastic contact with the opening, and a flow-channel forming plate for forming a flow channel disposed on the downstream side of the valve seat, the flow channel, extending in a longitudinal direction of the elastic portion and the flow channel forming plate having an end portion side extending in an upstream direction to form a flow channel whose sectional area decreases in the longi
    Type: Application
    Filed: September 25, 2003
    Publication date: March 25, 2004
    Inventors: Minoru Usui, Takao Kobayashi, Satoshi Shinada, Hisashi Miyazawa, Takahiro Naka
  • Publication number: 20040051766
    Abstract: In an ink cartridge, a negative pressure generating mechanism is disposed between an ink storage region and an ink supply port, and has a wall surface having two through-holes for ink flow, and a valve member contacted with and separated from the through-hole by receiving a pressure in an ink supply port side. Ink flowing via the through-hole is supplied via the through-hole to the ink supply port.
    Type: Application
    Filed: February 14, 2003
    Publication date: March 18, 2004
    Inventors: Hisashi Miyazawa, Atsushi Kobayashi, Satoshi Shinada
  • Publication number: 20040016749
    Abstract: While blowing out cooling air to a preform which is biaxially stretched and blow molded into a bottle shape, heat sources are made operative by a high power and the first heating process as quick heating is performed to the preform. Subsequently, the heated preform is left as it is and a temperature adjusting process to reduce a temperature difference between an outer surface temperature and an inner surface temperature of the preform to a predetermined value or less is executed. The second heating process to heat the preform until the outer surface temperature is equal to a temperature which is slightly lower than a crystallization temperature of the PET is executed to the preform obtained after completion of the temperature adjusting process while blowing out the cooling air to the preform. Thus, the quick heating of the preform is safely accomplished without causing an overheating state.
    Type: Application
    Filed: June 13, 2003
    Publication date: January 29, 2004
    Inventors: Hisashi Miyazawa, Daisuke Uesugi
  • Patent number: 6666551
    Abstract: An ink cartridge may have an ink accommodating portion shaped to contain ink, an ink supply hole disposed at a bottom of the ink accommodating portion, and a valve unit including a movable valve portion and a fixed valve portion, the movable valve portion being oriented such that a flow of ink is regulated by a horizontal motion of the movable valve portion. The valve unit may further include a main portion and an auxiliary portion, the movable valve portion being disposed on the main portion and the fixed valve portion being disposed on the auxiliary portion, wherein the auxiliary portion is selectively detachable from the main portion. The ink cartridge may further comprise a supply hole attachment located at the bottom of the ink accommodating portion, the supply hole being defined in a selectively detachable supply hole attachment.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: December 23, 2003
    Assignee: Seiko Epson Corporation
    Inventors: Takao Kobayashi, Hisashi Miyazawa
  • Patent number: 6648459
    Abstract: A valve unit in an ink supply channel of an ink-jet recording apparatus, the ink supply channel having an upstream side and a downstream side, the valve unit comprising a diaphragm valve having a thin elastic diaphragm operating in response to pressure difference between an upstream side and a downstream side of the diaphragm, a valve body formed on the surface of the thin elastic diaphragm and having an opening therein, and an elastic support portion integrally formed with the valve body for urging the valve body toward the upstream direction, a valve seat disposed in the ink supply channel upstream of the diaphragm and kept in elastic contact with the opening, and a flow-channel forming plate for forming a flow channel disposed on the downstream side of the valve seat, the flow channel, extending in a longitudinal direction of the elastic portion and the flow channel forming plate having an end portion side extending in an upstream direction to form a flow channel whose sectional area decreases in the longi
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: November 18, 2003
    Assignee: Seiko Epson Corporation
    Inventors: Minoru Usui, Takao Kobayashi, Satoshi Shinada, Hisashi Miyazawa, Takahiro Naka
  • Publication number: 20030155023
    Abstract: There is disclosed a fluid supply valve comprising a disc-shaped valve body which is equipped with a fluid supply port in the central portion thereof and composed of an elastic material whose peripheral portion is reinforced and fixed with a rigid material, the fluid supply port being closed when the valve body abuts against a fixed valve seat placed so as to be opposite to the fluid supply port, and being opened when the valve body is separated from the fixed valve seat, wherein the disc shaped valve body is equipped further with a thin walled portion in the intermediate annular portion between the fluid supply port and the peripheral portion in the radial direction, and/or with an inflectional portion in the radial direction between the fluid supply port and the peripheral portion.
    Type: Application
    Filed: February 6, 2003
    Publication date: August 21, 2003
    Applicant: Seiko Epson Corporation
    Inventors: Hisashi Miyazawa, Hirofumi Kikuchi, Youichi Nishimuro, Kunio Machida
  • Publication number: 20030128261
    Abstract: An ink cartridge (1) for supplying the ink in an ink reserving chamber (3) via an ink supply port (4) into a recording head (21) has a differential pressure valve mechanism (5) disposed between an ink flow port (7) and the ink supply port (4) in the ink reserving chamber (3), whereby the ink is supplied an adequate amount to the recording head (21) by opening or closing the differential pressure valve mechanism (5) in accordance with an ink pressure of the recording head (21). As a result, it is possible to supply the ink at a substantially constant pressure to the recording head without regard to the variation in the amount of ink or the movement of the carriage.
    Type: Application
    Filed: February 25, 2003
    Publication date: July 10, 2003
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Minoru Usui, Hisashi Miyazawa
  • Patent number: 6585358
    Abstract: An ink cartridge (1) for supplying the ink in an ink reserving chamber (3) via an ink supply port (4) into a recording head (21) has a differential pressure valve mechanism (5) disposed between an ink flow port (7) and the ink supply port (4) in the ink reserving chamber (3), whereby the ink is supplied an adequate amount to the recording head (21) by opening or closing the differential pressure valve mechanism (5) in accordance with an ink pressure of the recording head (21). As a result, it is possible to supply the ink at a substantially constant pressure to the recording head without regard to the variation in the amount of ink or the movement of the carriage.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: July 1, 2003
    Assignee: Seiko Epson Corporation
    Inventors: Minoru Usui, Hisashi Miyazawa
  • Publication number: 20030107629
    Abstract: An ink cartridge may have an ink accommodating portion shaped to contain ink, an k supply hole disposed at a bottom of the ink accommodating portion, and a valve unit including a movable valve portion and a fixed valve portion, the movable valve portion being oriented such that a flow of ink is regulated by a horizontal motion of the movable valve portion The valve unit may further include a main portion and an auxiliary portion, the movable valve portion being disposed on the main portion and the fixed valve portion being disposed on the auxiliary portion, wherein the auxiliary portion is selectively detachable from the main portion. The ink cartridge may further comprise a supply hole attachment located at the bottom of the ink accommodating portion, the supply hole being defined in a selectively detachable supply hole attachment.
    Type: Application
    Filed: January 22, 2003
    Publication date: June 12, 2003
    Inventors: Takao Kobayashi, Hisashi Miyazawa