Patents by Inventor Sadao Kanbe

Sadao Kanbe 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).

  • Patent number: 7038832
    Abstract: An electrophoretic display comprising a plurality of microcapsules disposed between a pair of substrates, wherein each microcapsule comprises a capsule body containing an insulating fluid and charged particles dispersed in the fluid. The microcapsules are contacted with at least the substrate arranged at a display face side of the pair of substrates and each microcapsule has a flat surface at least at the display face side so that the substrate at the display face side is in face-to-face contact with the microcapsules. As a result, the proportion of the contact area of the substrate with the microcapsules increases compared with the traditional electrophoretic display, preventing uneven displaying and achieving increased contrast and high-quality displaying.
    Type: Grant
    Filed: July 14, 2003
    Date of Patent: May 2, 2006
    Assignee: Seiko Epson Corporation
    Inventor: Sadao Kanbe
  • Publication number: 20050286116
    Abstract: To provide an electrophoretic dispersion capable of reducing or preventing the aggregation of electrophoretic particles, an electrophoretic display device using the electrophoretic dispersion, a method of manufacturing the electrophoretic display device, and an electronic system superior in display performance; an electrophoretic display device (electrophoretic display unit) has: a first substrate with a first electrode; a second substrate with a second electrode opposite the first electrode; and an electrophoretic dispersion provided between the first substrate and second substrate. The electrophoretic dispersion (dispersion for electrophoretic display units) includes a liquid phase insulative dispersion medium and electrophoretic particles dispersed in the dispersion medium, the particles electrophoretically migrated under an influence of an electric field.
    Type: Application
    Filed: August 17, 2005
    Publication date: December 29, 2005
    Applicant: Seiko Epson Corporation
    Inventor: Sadao Kanbe
  • Patent number: 6947203
    Abstract: To provide an electrophoretic dispersion capable of reducing or preventing the aggregation of electrophoretic particles, an electrophoretic display device using the electrophoretic dispersion, a method of manufacturing the electrophoretic display device, and an electronic system superior in display performance; an electrophoretic display device (electrophoretic display unit) has: a first substrate with a first electrode; a second substrate with a second electrode opposite the first electrode; and an electrophoretic dispersion provided between the first substrate and second substrate. The electrophoretic dispersion (dispersion for electrophoretic display units) includes a liquid phase insulative dispersion medium and electrophoretic particles dispersed in the dispersion medium, the particles electrophoretically migrated under an influence of an electric field.
    Type: Grant
    Filed: June 8, 2004
    Date of Patent: September 20, 2005
    Assignee: Seiko Epson Corporation
    Inventor: Sadao Kanbe
  • Publication number: 20050156148
    Abstract: A composition, which can be used in an ink jet printing method, can use either a non-polar or a weakly polar material as a functional material, prevents clogging at dispensing time, achieves stable dispensing, and prevents precipitation of content matter during dispensing and phase separation during film formation, a uniform, homogenous functional film formed using this composition and a manufacturing method therefor, as well as an organic EL device or other such display device and a manufacturing method therefor. A composition of the present invention consists of a functional material, and a solvent comprising at least one benzene derivative, which has one or more substituents, and these substituents have 3 or more carbon atoms in total. A functional film of the present invention is formed using the above-mentioned composition. A display device of the present invention comprises luminescent material layers formed using the above-mentioned composition between two electrodes.
    Type: Application
    Filed: March 11, 2005
    Publication date: July 21, 2005
    Applicants: CAMBRIDGE DISPLAY TECHNOLOGY LIMITED, SEIKO EPSON CORPORATION
    Inventors: Sadao Kanbe, Shunichi Seki
  • Publication number: 20050146776
    Abstract: An exemplary embodiment provides a method of manufacturing an electrophoretic display that has a display part including an electrophoretic particle electrophoresed by the application of an electric field between a pair of substrates and allows for color mixture between regions displaying different colors. The method includes first disposing a first display part on one substrate, and second disposing a second display part that has a different color from a color of the first display part on one of the pair of substrates. The first display part is dried before the second display part is disposed.
    Type: Application
    Filed: January 6, 2005
    Publication date: July 7, 2005
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Sadao Kanbe
  • Publication number: 20050094247
    Abstract: A mixture of a first material having high chemical affinity for the electrophoretic particles 6a and a second material having low chemical affinity therefor is used as a binder for fixing microcapsules 5 between a first electrode 3 and a second electrode 4.
    Type: Application
    Filed: August 20, 2003
    Publication date: May 5, 2005
    Inventor: Sadao Kanbe
  • Patent number: 6878312
    Abstract: A composition, which can be used in an ink jet printing method, can use either a non-polar or a weakly polar material as a functional material, prevents clogging at dispensing time, achieves stable dispensing, and prevents precipitation of content matter during dispensing and phase separation during film formation, a uniform, homogenous functional film formed using this composition and a manufacturing method therefor, as well as an organic EL device or other such display device and a manufacturing method therefor. A composition of the present invention consists of a functional material, and a solvent comprising at least one benzene derivative, which has one or more substituents, and these substituents have 3 or more carbon atoms in total. A functional film of the present invention is formed using the above-mentioned composition. A display device of the present invention comprises luminescent material layers formed using the above-mentioned composition between two electrodes.
    Type: Grant
    Filed: March 29, 2000
    Date of Patent: April 12, 2005
    Assignees: Seiko Epson Corporation, Cambridge Display Technology Limited
    Inventors: Sadao Kanbe, Shunichi Seki
  • Publication number: 20050058770
    Abstract: A composition for an organic EL element which can form a high precision pattern in a simple manner and in a short time and a method of manufacturing the organic EL element are disclosed. By using the composition, optimum film design and luminescence characteristic can be easily obtained, and an adjustment of a luminescence efficiency can also be easily performed. The composition for an organic EL element comprises a precursor of a conjugated organic polymer compound for forming at least one luminescent layer (106), (107), (108) having a certain color and at least one kind of fluorescent dye for changing the luminescence characteristic of the luminescent layer. The luminescent layer is made from a pattern formed by an ink-jet method. As for the precursor, a precursor of PPV, PPV derivative or the like is preferably used.
    Type: Application
    Filed: September 22, 2004
    Publication date: March 17, 2005
    Applicant: Seiko Epson Corporation
    Inventors: Hiroshi Kiguchi, Sadao Kanbe, Shunichi Seki
  • Patent number: 6863961
    Abstract: A method of manufacturing an organic EL element according to the present invention comprises the steps of forming pixel electrodes (801), (802), (803) on a transparent substrate (804) and forming on the pixel electrodes by patterning luminescent layers (806), (807), (808) made of an organic compound by means of an ink-jet method. According to this method, it is possible to carry out a high precise patterning easily and in a short time, thereby enabling to carry out optimization for a film design and luminescent characteristic easily as well as making it easy to adjust a luminous efficiency.
    Type: Grant
    Filed: November 25, 1997
    Date of Patent: March 8, 2005
    Assignee: Seiko Epson Corporation
    Inventors: Satoru Miyashita, Hiroshi Kiguchi, Tatsuya Shimoda, Sadao Kanbe
  • Publication number: 20050042477
    Abstract: A method of manufacturing an organic EL element according to the present invention comprises the steps of forming pixel electrodes (801), (802), (803) on a transparent substrate (804) and forming on the pixel electrodes by patterning luminescent layers (806), (807), (808) made of an organic compound by means of an ink-jet method. According to this method, it is possible to carry out a high precise patterning easily and in a short time, thereby enabling to carry out optimization for a film design and luminescent characteristic easily as well as making it easy to adjust a luminous efficiency.
    Type: Application
    Filed: October 4, 2004
    Publication date: February 24, 2005
    Applicant: Seiko Epson Corporation
    Inventors: Satoru Miyashita, Hiroshi Kiguchi, Tatsuya Shimoda, Sadao Kanbe
  • Publication number: 20050024710
    Abstract: To provide an electrophoretic dispersion capable of reducing or preventing the aggregation of electrophoretic particles, an electrophoretic display device using the electrophoretic dispersion, a method of manufacturing the electrophoretic display device, and an electronic system superior in display performance; an electrophoretic display device (electrophoretic display unit) has: a first substrate with a first electrode; a second substrate with a second electrode opposite the first electrode; and an electrophoretic dispersion provided between the first substrate and second substrate. The electrophoretic dispersion (dispersion for electrophoretic display units) includes a liquid phase insulative dispersion medium and electrophoretic particles dispersed in the dispersion medium, the particles electrophoretically migrated under an influence of an electric field.
    Type: Application
    Filed: June 8, 2004
    Publication date: February 3, 2005
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Sadao Kanbe
  • Patent number: 6843937
    Abstract: A composition for an organic EL element which can form a high precision pattern in a simple manner and in a short time and a method of manufacturing the organic EL element are disclosed. By using the composition, optimum film design and luminescence characteristic can be easily obtained, and an adjustment of a luminescence efficiency can also be easily performed. The composition for an organic EL element comprises a precursor of a conjugated organic polymer compound for forming at least one luminescent layer (106), (107), (108) having a certain color and at least one kind of fluorescent dye for changing the luminescence characteristic of the luminescent layer. The luminescent layer is made from a pattern formed by an ink-jet method. As for the precursor, a precursor of PPV, PPV derivative or the like is preferably used.
    Type: Grant
    Filed: July 8, 1998
    Date of Patent: January 18, 2005
    Assignee: Seiko Epson Corporation
    Inventors: Hiroshi Kiguchi, Sadao Kanbe, Shunichi Seki
  • Patent number: 6838192
    Abstract: A method of manufacturing an organic EL element according to the present invention comprises the steps of forming pixel electrodes (801), (802), (803) on a transparent substrate (804) and forming on the pixel electrodes by patterning luminescent layers (806), (807), (808) made of an organic compound by means of an ink-jet method. According to this method, it is possible to carry out a high precise patterning easily and in a short time, thereby enabling to carry out optimization for a film design and luminescent characteristic easily as well as making it easy to adjust a luminous efficiency.
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: January 4, 2005
    Assignee: Seiko Epson Corporation
    Inventors: Satoru Miyashita, Hiroshi Kiguchi, Tatsuya Shimoda, Sadao Kanbe
  • Patent number: 6833156
    Abstract: A method of manufacturing an organic EL element according to the present invention comprises the steps of forming pixel electrodes (801), (802), (803) on a transparent substrate (804) and forming on the pixel electrodes by patterning luminescent layers (806), (807), (808) made of an organic compound by means of an ink-jet method. According to this method, it is possible to carry out a high precise patterning easily and in a short time, thereby enabling to carry out optimization for a film design and luminescent characteristic easily as well as making it easy to adjust a luminous efficiency.
    Type: Grant
    Filed: October 24, 2001
    Date of Patent: December 21, 2004
    Assignee: Seiko Epson Corporation
    Inventors: Satoru Miyashita, Hiroshi Kiguchi, Tatsuya Shimoda, Sadao Kanbe
  • Patent number: 6821553
    Abstract: A method of manufacturing an organic EL element according to the present invention comprises the steps of forming pixel electrodes (801), (802), (803) on a transparent substrate (804) and forming on the pixel electrodes by patterning luminescent layers (806), (807), (808) made of an organic compound by means of an ink-jet method. According to this method, it is possible to carry out a high precise patterning easily and in a short time, thereby enabling to carry out optimization for a film design and luminescent characteristic easily as well as making it easy to adjust a luminous efficiency.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: November 23, 2004
    Assignee: Seiko Epson Corporation
    Inventors: Satoru Miyashita, Hiroshi Kiguchi, Tatsuya Shimoda, Sadao Kanbe
  • Publication number: 20040169004
    Abstract: The present invention is a substrate for forming a patterned thin film by causing a specific fluid to adhere. More particularly, this substrate comprises a pattern formation region that is patterned in a specific shape in order to form a film. This pattern formation region is constituted such that an affinity region having an affinity to the fluid is disposed according to specific rules within a non-affinity region not having an affinity to the fluid. The fluid can be uniformly made to adhere to the required region, without spreading out too much or splitting up, allowing a uniform thin film to be formed.
    Type: Application
    Filed: March 10, 2004
    Publication date: September 2, 2004
    Applicant: Seiko Epson Corporation
    Inventors: Sadao Kanbe, Shunichi Seki, Hitoshi Fukushima, Hiroshi Kiguchi
  • Patent number: 6733868
    Abstract: The present invention is a substrate for forming a patterned thin film by causing a specific fluid to adhere. More particularly, this substrate comprises a pattern formation region that is patterned in a specific shape in order to form a film. This pattern formation region is constituted such that an affinity region having an affinity to the fluid is disposed according to specific rules within a non-affinity region not having an affinity to the fluid. The fluid can be uniformly made to adhere to the required region, without spreading out too much or splitting up, allowing a uniform thin film to be formed.
    Type: Grant
    Filed: August 2, 2000
    Date of Patent: May 11, 2004
    Assignee: Seiko Epson Corporation
    Inventors: Sadao Kanbe, Shunichi Seki, Hitoshi Fukushima, Hiroshi Kiguchi
  • Publication number: 20040061927
    Abstract: An electrophoretic display comprising a plurality of microcapsules disposed between a pair of substrates, wherein each microcapsule comprises a capsule body containing an insulating fluid and charged particles dispersed in the fluid. The microcapsules are contacted with at least the substrate arranged at a display face side of the pair of substrates and each microcapsule has a flat surface at least at the display face side so that the substrate at the display face side is in face-to-face contact with the microcapsules. As a result, the proportion of the contact area of the substrate with the microcapsules increases compared with the traditional electrophoretic display, preventing uneven displaying and achieving increased contrast and high-quality displaying.
    Type: Application
    Filed: July 14, 2003
    Publication date: April 1, 2004
    Inventor: Sadao Kanbe
  • Patent number: 6696225
    Abstract: A method of manufacturing a substrate with a pattern showing hydrophilic property formed on a pattern surface comprising the steps of applying a silane coupling agent to the pattern surface of the base and forming a silane coupling film, forming a mask conforming to the pattern to be provided on the silane coupling film, and activating the silane coupling film provided with the mask by applying energy thereto in order to generate a polar group. In the regions where masking could not be performed, a polar group such as the hydroxyl group, carboxyl group, amino group, or amino carboxyl group is generated and shows hydrophilic property. The masked regions comprise hydrophobic property. This substrate functions as a universal substrate suitable for forming patterns with the inkjet system.
    Type: Grant
    Filed: July 16, 1999
    Date of Patent: February 24, 2004
    Assignee: Seiko Epson Corporation
    Inventors: Sadao Kanbe, Hitoshi Fukushima, Hiroshi Kiguchi, Syunichi Seki
  • Publication number: 20040012106
    Abstract: The present invention provides: a microcapsule composition for electrophoretic displays; a production process for the microcapsule composition for the electrophoretic displays; a production process for a sheet for the electrophoretic displays; and a handling method for microcapsules for the electrophoretic displays; wherein the microcapsule composition contains microcapsules and, when used for the electrophoretic displays, can make them as excellent as conventional in various performances (e.g. longtime stability of displaying, respondability of displaying, contrast, and number of times of display rewritability) and, particularly above all, can make the electrophoretic displays exhibit a very high performance as to the contrast.
    Type: Application
    Filed: July 3, 2003
    Publication date: January 22, 2004
    Inventors: Sadao Kanbe, Hideyuki Kawai, Mitsuo Kushino, Makoto Matsumoto