Patents by Inventor Shigeru Sakamoto

Shigeru Sakamoto 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: 20090131255
    Abstract: The present invention provides an aqueous-liquid-absorbing agent which comprises water-absorbent resin particles as essential components and is suitable for uses in sanitary materials. The aqueous-liquid-absorbing agent according to the present invention is an aqueous-liquid-absorbing agent comprising water-absorbent resin particles as essential components, wherein the water-absorbent resin particles are obtained by a process including the step of polymerizing a water-soluble ethylenically unsaturated monomer having a carboxyl group, and have a crosslinked structure in their inside, the aqueous-liquid-absorbing agent exhibiting a water absorption capacity (CRC) of 5 to 25 g/g and a saline flow conductivity (SFC) of not less than 1216 cm3·s·10?7/g.
    Type: Application
    Filed: September 25, 2006
    Publication date: May 21, 2009
    Applicant: NIPPON SHOKUBAI CO., LTD.
    Inventors: Hiroyuki Ikeuchi, Shigeru Sakamoto, Sayaka Machida
  • Publication number: 20090002762
    Abstract: An image processing apparatus applies a compression process to each of a plurality of areas within a page independently on a specified page of image data consisting of a plurality of pages, and stores thus obtained compressed image data in a storage unit. Next, the image processing apparatus identifies an area as a unique area if the area has different contents when a plurality of areas within the specified page are compared with a plurality of areas within a page different from the specified page respectively between the corresponding areas. The image processing apparatus corrects unique compressed image data among compressed image data of the specified page stored in the storage unit that corresponds to the unique area to be identical to corrected unique compressed image data obtained by compressing the unique area of a page different from the specified page, and outputs the corrected compressed image data to a printer.
    Type: Application
    Filed: January 23, 2008
    Publication date: January 1, 2009
    Inventors: Shigeru Sakamoto, Isao Yamashita
  • Patent number: 7438999
    Abstract: A dispersant for an organic pigment contains a compound represented by the following formula (1): wherein R1 and R2 may be the same or different and each independently represents a hydrogen atom, a halogen atom, a hydroxyl group, a primary, secondary or tertiary amino group, an alkyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted phthalimidomethyl group, R3 and R4 may be the same or different and each independently represents a hydrogen atom or a lower alkyl group, and n means an average number of introduced sulfonic groups and stands for a number of from 0.5 to 3; or at least one salt selected from the group consisting of its metal salt, ammonium salt, organic amine salt, and organic quaternary ammonium salt. Also disclosed are a readily-dispersing pigment composition, a pigment dispersion, a colored coating fluid for color filters, a fabrication process of a color filter and a color filter, all of which make use of the dispersant.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: October 21, 2008
    Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.
    Inventors: Hiroaki Saikatsu, Shigeru Sakamoto, Masanori Takakamo, Seishichi Sasaki, Hiromitsu Yanagimoto, Yoshimasa Tsuchiya, Tetsuo Fukuda, Akio Yoshida
  • Patent number: 7428110
    Abstract: It is an object to provide an optical component holding unit whereby the positioning accuracy can be improved while reducing cost through facilitated assembling and ensuring reproducibility. The fitting between a cross-sectionally noncircular-shaped rectangular convex portion 8a and a rectangular hole and the fitting between a cross-sectionally circular-shaped circular convex portion 11a and a circular hole, which surround or form opening portions 22a and 22b for allowing passage of light, guide adjacent optical component holding units 35 to predetermined positions and couples the units detachably to each other for positioning in the three-dimensional direction, while the fitting between the rectangular convex portion 8a and the rectangular hole and the fitting between spring pins 13a and fitting holes restrain the adjacent optical component holding units 35 relatively in the rotation direction for positioning in the rotation direction.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: September 23, 2008
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Tamotsu Tamada, Kazunori Nomi, Shigeru Sakamoto
  • Patent number: 7423816
    Abstract: A solid immersion lens 1 comprises a spherical portion 2 and a bottom surface portion 3. The bottom surface portion 3 is attached in close contact with a substrate 10 of a semiconductor device to be an observed object. The bottom surface portion 3 of this solid immersion lens 1 is formed in a cylindrical shape. Thereby, a solid immersion lens which can be easily separated from the observed object after an observation and can, during an observation, allow a light flux with a high NA to pass and a microscope using the same can be obtained.
    Type: Grant
    Filed: March 19, 2004
    Date of Patent: September 9, 2008
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Hirotoshi Terada, Ikuo Arata, Shigeru Sakamoto
  • Publication number: 20080158667
    Abstract: Optical contact liquid containing an amphipathic molecule is dripped onto a semiconductor device which is a sample as an inspection object (S104), and a solid immersion lens is set thereon (S105). The inserted position of the solid immersion lens is then adjusted (S106). The optical contact liquid is then dried (S108), and thereby the solid immersion lens is brought into optically-close contact with the semiconductor device. As a result, a sample observation method and a microscope or the like can be realized, in which the solid immersion lens can be easily aligned to a desired position on the sample, and the solid immersion lens can be securely brought into optically-close contact with the sample.
    Type: Application
    Filed: February 27, 2008
    Publication date: July 3, 2008
    Inventors: Ikuo Arata, Shigeru Sakamoto, Hirotoshi Terada
  • Patent number: 7393404
    Abstract: A pigment dispersant contains the following component (a) alone or the following components (a) and (b) in combination: Component (a): a composite pigment formed of a diketopyrrolopyrrole pigment having a sulfonic group and another diketopyrrolopyrrole pigment having no sulfonic group, wherein the number of sulfonic group per molecule of the diketopyrrolopyrrole pigments in the composite pigment is from 0.05 to 0.5; and Component (b): a pigment other than the component (a), wherein the pigment has a sulfonic group or its metal salt, ammonium salt or amine salt. Also disclosed are a colored composition for color filters, a process for the fabrication of a color filter, the color filter fabricated by the process, an image display device including the color filter, and an information communication equipment including the image display device.
    Type: Grant
    Filed: February 15, 2006
    Date of Patent: July 1, 2008
    Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.
    Inventors: Hiroaki Saikatsu, Hiromitsu Yanagimoto, Naoto Kamata, Kazuhito Ooki, Yutaka Miura, Shigeru Sakamoto, Akio Yoshida, Michiei Nakamura
  • Publication number: 20080137064
    Abstract: Optical contact liquid containing an amphipathic molecule is dripped onto a semiconductor device which is a sample as an inspection object (S104), and a solid immersion lens is set thereon (S105). The inserted position of the solid immersion lens is then adjusted (S106). The optical contact liquid is then dried (S108), and thereby the solid immersion lens is brought into optically-close contact with the semiconductor device. As a result, a sample observation method and a microscope or the like can be realized, in which the solid immersion lens can be easily aligned to a desired position on the sample, and the solid immersion lens can be securely brought into optically-close contact with the sample.
    Type: Application
    Filed: December 28, 2007
    Publication date: June 12, 2008
    Inventors: Ikuo Arata, Shigeru Sakamoto, Hirotoshi Terada
  • Patent number: 7378453
    Abstract: A surface crosslinking treatment method of a water-absorbing resin powder is disclosed that can overcome various problems in production encountered in the production of surface crosslinked water-absorbing resin powders on an industrial scale and can produce a water-absorbing resin powder having excellent physical properties without causing deterioration in physical properties of resin.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: May 27, 2008
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Kozo Nogi, Shigeru Sakamoto, Noriaki Mizutani, Yorimichi Dairoku, Kunihiko Ishizaki
  • Patent number: 7368148
    Abstract: Color filters can each be fabricated by printing a pixel pattern for the color filter on a flexible plastic film by a central impression cylinder press. The pixel pattern is formed of pixels of three primary colors consisting of red, green and blue or pixels of three primary colors consisting of yellow, magenta and cyan. Also disclosed are inks, color filters, and image displays using the color filters.
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: May 6, 2008
    Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.
    Inventors: Michiei Nakamura, Shigeru Sakamoto, Toshio Yamaguchi, Mamoru Tsukano, Toshiyasu Fujita, Akio Yoshida
  • Patent number: 7359115
    Abstract: Optical contact liquid containing an amphipathic molecule is dripped onto a semiconductor device which is a sample as an inspection object (S104), and a solid immersion lens is set thereon (S105). The inserted position of the solid immersion lens is then adjusted (S106). The optical contact liquid is then dried (S108), and thereby the solid immersion lens is brought into optically-close contact with the semiconductor device. As a result, a sample observation method and a microscope or the like can be realized, in which the solid immersion lens can be easily aligned to a desired position on the sample, and the solid immersion lens can be securely brought into optically-close contact with the sample.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: April 15, 2008
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Ikuo Arata, Shigeru Sakamoto, Hirotoshi Terada
  • Publication number: 20080074685
    Abstract: The printer controller divides the image data within each page, compare the divided areas of various pages to identify separately the common areas that can be used in a plurality of pages from the unique areas that do not belong to said common areas, applies RIP as an image process for printing to the unique areas and the common areas for one of the plurality of pages containing the common areas, synthesizes the common areas and the unique areas to which RIP was applied, and outputs the synthesized image data to the printer.
    Type: Application
    Filed: May 29, 2007
    Publication date: March 27, 2008
    Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
    Inventor: Shigeru Sakamoto
  • Publication number: 20080074739
    Abstract: For a semiconductor device S as an inspected object, there are provided an image acquisition part 1, an optical system 2 including an objective lens 20, and a solid immersion lens (SIL) 3 movable between an insertion position including an optical axis from the semiconductor device S to the objective lens 20 and a standby position off the optical axis. Then observation is carried out in two control modes consisting of a first mode in which the SIL 3 is located at the standby position and in which focusing and aberration correction are carried out based on a refractive index n0 and a thickness t0 of a substrate of the semiconductor device S, and a second mode in which the SIL 3 is located at the insertion position and in which focusing and aberration correction are carried out based on the refractive index n0 and thickness t0 of the substrate, and a refractive index n1, a thickness d1, and a radius of curvature R1 of SIL 3.
    Type: Application
    Filed: November 6, 2007
    Publication date: March 27, 2008
    Inventors: Hirotoshi Terada, Ikuo Arata, Masaharu Tokiwa, Hiroshi Tanabe, Shigeru Sakamoto, Yoshio Isobe
  • Patent number: 7347894
    Abstract: There is disclosed a pigment dispersant comprises the compound represented by the following formula (I) or a metal salt, ammonium salt, amine salt or alkylammoniumchloride salt thereof. Also disclosed are a colored composition for CF, a process for the fabrication of a CF, the color filter fabricated by the process, an image display device including the color filter, and an information communication equipment including the image display device.
    Type: Grant
    Filed: April 6, 2006
    Date of Patent: March 25, 2008
    Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.
    Inventors: Hiromitsu Yanagimoto, Hiroaki Saikatsu, Naoto Kamata, Shigeru Sakamoto, Akio Yoshida, Michiei Nakamura
  • Publication number: 20080033703
    Abstract: It includes: a part which changes a computer-aided design model according to a design variable and outputs it; a part which calculates and outputs natural vibration modes and natural frequencies; a part which makes a natural vibration mode image; a part which binarizes a natural vibration mode image by a threshold value to make a binary image; a part which extracts pattern information from a binary image and outputs it together with the image; a part for distinguishing natural vibration mode which, using pattern information, distinguishes the natural vibration mode to be tracked from natural vibration modes after deformation and outputs it; and a part for calculating optimum solution which finds a design variable which makes the natural frequency of a natural vibration mode a target value and outputs it. Thereby, the structural optimization system can easily distinguish and track natural vibration modes through computer-aided design model change in structural design.
    Type: Application
    Filed: August 7, 2007
    Publication date: February 7, 2008
    Inventors: Hirohisa Enomoto, Shigeru Sakamoto
  • Patent number: 7312921
    Abstract: For a semiconductor device S as an inspected object, there are provided an image acquisition part 1, an optical system 2 including an objective lens 20, and a solid immersion lens (SIL) 3 movable between an insertion position including an optical axis from the semiconductor device S to the objective lens 20 and a standby position off the optical axis. Then observation is carried out in two control modes consisting of a first mode in which the SIL 3 is located at the standby position and in which focusing and aberration correction are carried out based on a refractive index n0 and a thickness t0 of a substrate of the semiconductor device S, and a second mode in which the SIL 3 is located at the insertion position and in which focusing and aberration correction are carried out based on the refractive index n0 and thickness t0 of the substrate, and a refractive index n1, a thickness d1, and a radius of curvature R1 of SIL 3.
    Type: Grant
    Filed: January 18, 2006
    Date of Patent: December 25, 2007
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Hirotoshi Terada, Ikuo Arata, Masaharu Tokiwa, Hiroshi Tanabe, Shigeru Sakamoto, Yoshio Isobe
  • Patent number: 7312278
    Abstract: There is provided: a production process for a water-absorbing agent having stable properties in a short time; and a water-absorbing agent. The production process comprises the step of blending an acid-group-containing water-absorbent resin powder with a noncrosslinkable water-soluble inorganic base and/or an irreducible alkaline-metal-salt pH buffer and further with a dehydratable crosslinking agent reactable with the acid group, thereby subjecting the resin powder to crosslinking treatment, or comprises the step of blending an acid-group-containing water-absorbent resin powder with the above base and/or pH buffer and further with a crosslinking agent reactable with the acid group, thereby subjecting the resin powder to crosslinking treatment, wherein the resin powder has a weight-average particle diameter of 300 to 600 ?m wherein the ratio of fine powders having particle diameters of not larger than 150 ?m in the resin powder is not more than 10 weight %.
    Type: Grant
    Filed: June 7, 2002
    Date of Patent: December 25, 2007
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Yasuhisa Nakashima, Hiroyuki Ikeuchi, Yasuhiro Fujita, Makoto Nagasawa, Shigeru Sakamoto, Yorimichi Dairoku, Katsuyuki Wada, Shinichi Fujino, Toshimasa Kitayama, Kazuhisa Hitomi
  • Publication number: 20070286557
    Abstract: It is an object to provide an optical component holding unit whereby the positioning accuracy can be improved while reducing cost through facilitated assembling and ensuring reproducibility. The fitting between a cross-sectionally noncircular-shaped rectangular convex portion 8a and a rectangular hole and the fitting between a cross-sectionally circular-shaped circular convex portion 11a and a circular hole, which surround or form opening portions 22a and 22b for allowing passage of light, guide adjacent optical component holding units 35 to predetermined positions and couples the units detachably to each other for positioning in the three-dimensional direction, while the fitting between the rectangular convex portion 8a and the rectangular hole and the fitting between spring pins 13a and fitting holes restrain the adjacent optical component holding units 35 relatively in the rotation direction for positioning in the rotation direction.
    Type: Application
    Filed: February 17, 2005
    Publication date: December 13, 2007
    Inventors: Tamotsu Tamada, Kazunori Nomi, Shigeru Sakamoto
  • Publication number: 20070264489
    Abstract: A homogeneously surface cross-linked water absorbent resin and a method for the production thereof are provided. The water absorbent material is formed of a surface cross-linked water absorbent resin resulting from granular irregularly pulverized shaped surface cross-linking the product of partial neutralization or whole neutralization of a water absorbent resin having acrylic acid or a metal salt thereof as a main component, which water absorbent material shows a metal atom concentration on the surface of the water absorbent material in the range of 0-10% within 0 second of polishing and 2-35% at 10 seconds value of polishing as determined by subjecting the water absorbent material to Ar ion discharge polishing under a voltage of 500 ?. The surface cross-linked water absorbent resin to be used herein can be produced by surface cross-linking a water absorbent resin having a specific particle diameter with a surface cross-linking agent having a water concentration in a specific range.
    Type: Application
    Filed: August 31, 2005
    Publication date: November 15, 2007
    Applicant: NIPPON SHOKUBAI CO., LTD.
    Inventors: Masazumi Sasabe, Kenji Kadonaga, Shigeru Sakamoto, Motohiro Imura, Tsunemasa Ueno, Hiroko Ueda, Yoshifumi Adachi
  • Patent number: 7288601
    Abstract: A method for mixing a water-absorbent resin and a surface cross-linking agent-containing solution to repress aggregates is equipped. The water-absorbent resin and the surface cross-linking agent-containing solution is mixed with a plow-shaped mixing device which is equipped with an inner wall formed of material manifesting an interfacial contact angle of not less than 60° to water and possessing a temperature of heat distortion of not lower than 70° C., a plow-shaped stirring vane and a disintegrating blade.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: October 30, 2007
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Kozo Nogi, Masazumi Sasabe, Kenji Kadonaga, Yoshio Irie, Shigeru Sakamoto, Koji Miyake