Patents by Inventor Satoshi Ogawa

Satoshi Ogawa 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: 8956795
    Abstract: A toner for developing an electrostatic image, including: toner base particles each including a binder resin and a releasing agent; and inorganic fine particles, wherein the toner includes the inorganic fine particles as an external additive on a surface of the toner base particle, wherein the toner base particles have a BET specific surface area of 2.5 m2/g to 5.0 m2/g, and wherein the inorganic fine particles comprise inorganic fine particles (A) which are each a secondary particle where a plurality of primary particles are coalesced together.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: February 17, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Satoshi Kojima, Tsuneyasu Nagatomo, Syouko Satoh, Osamu Uchinokura, Junichi Awamura, Satoshi Ogawa, Takahiro Honda, Daisuke Ito, Teruki Kusahara, Masaki Watanabe, Daisuke Inoue, Kiwako Hirohara
  • Publication number: 20140322643
    Abstract: A toner including a non-crystalline polyester resin and a crystalline polyester resin, wherein a tetrahydrofuran soluble component of the non-crystalline polyester resin has a weight-average molecular weight of 3,000 to 8,000 measured by gel permeation chromatography, and wherein the toner has a glass transition temperature A before an extraction process of the toner with methanol and a glass transition temperature B after the extraction process of the toner with methanol, and a difference between A and B (B?A) is 2.0° C. or less.
    Type: Application
    Filed: October 17, 2012
    Publication date: October 30, 2014
    Inventors: Masaki Watanabe, Satoshi Ogawa, Teruki Kusahara, Ryuta Yoshida
  • Publication number: 20140299786
    Abstract: Electron beam sterilization equipment includes an outer-surface sterilization zone Z2 for sterilizing the outer surface of a container B by emitting electron beams when the container B is transported along circular paths L1 and L2; and an inner-surface sterilization zone Z3 for sterilizing the inner surface of the container B. An electron beam irradiator E1 is located near the upstream side of a 1-2 joint J1-2 of the circular paths L1 and L2 disposed in the outer-surface sterilization zone Z2, and a electron beam irradiator E2 is located near the downstream side of the joint. Thus, the electron beam irradiator E1 and the electron beam irradiator E2 are brought close to each other so as to sequentially sterilize the one half outer surfaces and the other half outer surface of the container B.
    Type: Application
    Filed: October 15, 2012
    Publication date: October 9, 2014
    Applicant: HITACHI ZOSEN CORPORATION
    Inventors: Takayasu Yokobayashi, Satoshi Ogawa, Toru Hosokawa
  • Patent number: 8853654
    Abstract: A shield structure for electron beam sterilization equipment. The shield structure satisfies at least one of the following conditions: (I) an outer diameter D4 of an internal circumferential shield S4 is larger than an outer diameter D5 of an internal circumferential shield S5, and (II) an internal circumferential shield ST2 of a circular path LT2 downstream of an entrance trap zone Z1 connected to an outer-surface sterilization zone Z2 has an outer diameter DT2 that is larger than an outer diameter D1 of an internal circumferential shield S1 of a circular path L1 upstream of the outer-surface sterilization zone Z2.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: October 7, 2014
    Assignee: Hitachi Zosen Corporation
    Inventors: Takayasu Yokobayashi, Satoshi Ogawa, Toru Hosokawa
  • Patent number: 8846289
    Abstract: A method of manufacturing toner including melting, mixing, and kneading a releasing agent and a coloring agent with at least part of a polyester binder resin, and suspending and granulating an oil phase comprising the binder resin, the coloring agent, and the releasing agent in an aqueous medium.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: September 30, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Satoshi Ogawa, Tsuyoshi Sugimoto, Naohito Shimota, Hiroshi Yamashita, Masana Shiba, Junichi Awamura
  • Publication number: 20140231673
    Abstract: A shield structure for electron beam sterilization equipment. The shield structure satisfies at least one of the following conditions: (I) an outer diameter D4 of an internal circumferential shield S4 is larger than an outer diameter D5 of an internal circumferential shield S5, and (II) an internal circumferential shield ST2 of a circular path LT2 downstream of an entrance trap zone Z1 connected to an outer-surface sterilization zone Z2 has an outer diameter DT2 that is larger than an outer diameter D1 of an internal circumferential shield S1 of a circular path L1 upstream of the outer-surface sterilization zone Z2.
    Type: Application
    Filed: October 15, 2012
    Publication date: August 21, 2014
    Applicant: HITACHI ZOSEN CORPORATION
    Inventors: Takayasu Yokobayashi, Satoshi Ogawa, Toru Hosokawa
  • Patent number: 8778588
    Abstract: To provide a toner, which contains a binder resin, a colorant, and a releasing agent, wherein the binder resin contains a low molecular weight resin component, where the low molecular weight resin component has a resin softening coefficient (A), represented by the following formula (1), satisfying A>0.165, and has storage elastic modulus (dyne/cm2) G?(Tfb) satisfying G?(Tfb)?1×104 where Tfb is a flow onset temperature (° C.) of the low molecular weight resin component as measured by a capillary rheometer: A=|[(r1)?ln G?(r2)]/(T1?T2)|??Formula (1) (where T1 is temperature (° C.) at which storage elastic modulus G?(r1) is 1×105 (dyne/cm2) and T2 is temperature (° C.) at which storage elastic modulus G?(r2) is 1×103 (dyne/cm2) as measured by means of a viscoelasticity measuring device with measuring frequency of 1 Hz, and measuring distortion of 1 deg; and | | represents an absolute value.).
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: July 15, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Teruki Kusahara, Junichi Awamura, Tsuyoshi Sugimoto, Hyo Shu, Tomomi Suzuki, Osamu Uchinokura, Takahiro Honda, Satoshi Kojima, Satoshi Ogawa, Daisuke Inoue, Koshi Sato, Daisuke Ito, Ryuuta Yoshida, Syouko Satoh
  • Publication number: 20140140731
    Abstract: A toner including: a binder resin; a releasing agent; and a colorant, wherein the binder resin contains a crystalline polyester resin and a non-crystalline polyester resin, wherein the releasing agent has an endothermic peak temperature of 60° C. to 80° C. at the second temperature rising in differential scanning calorimetry, and wherein the releasing agent is an ester wax which satisfies the following expressions (1) and (2): 1.1 Pa·s??*a?2.0 Pa·s . . . Expression (1) 0.001??*b/?*a?1.00 . . . Expression (2) where in Expressions (1) and (2), ?*a denotes a complex viscosity (Pa·s) determined by measuring a dynamic viscoelasticity of the releasing agent at a measurement frequency of 6.28 rad/s, and ?*b denotes a complex viscosity (Pa·s) determined by measuring a dynamic viscoelasticity of the releasing agent at a measurement frequency of 62.8 rad/s.
    Type: Application
    Filed: July 3, 2012
    Publication date: May 22, 2014
    Inventors: Mamoru Hozumi, Junichi Awamura, Teruki Kusahara, Daisuke Ito, Satoshi Ogawa, Takahiro Honda, Kiwako Hirohara, Osamu Uchinokura, Satoshi Kojima, Syouko Satoh, Tsuneyasu Nagatomo, Masaki Watanabe, Masaaki Oka, Yasuaki Ohta
  • Patent number: 8711468
    Abstract: A display device includes: a substrate provided on a side of the display surface; a counter substrate disposed to face the substrate; a display layer provided between the substrate and the counter substrate and filled with a dispersion liquid formed of a dispersion medium in which white particles and black particles charged with polarities opposite to each other are dispersed; and a particle constrained layer provided in the display layer, and suppresses the white particles and the black particles from moving in an in-plane direction of the display layer, while allowing the particles to move in the thickness direction of the display layer. In the display device, a particle constrained layer is provided to be separated from the substrate.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: April 29, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Satoshi Ogawa
  • Patent number: 8673528
    Abstract: A toner including at least one polyester resin serving as a binder resin, a colorant, a releasing agent, and a fixing aid, wherein the fixing aid includes a fatty acid amide-based compound, and the fatty acid amide-based compound is at least one of a fatty acid amide compound having a mono- or higher valent amide bond and a fatty acid amide-based compound having a mono- or higher valent amino group or a hydroxyl group.
    Type: Grant
    Filed: May 22, 2009
    Date of Patent: March 18, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Tsuyoshi Sugimoto, Hiroshi Yamashita, Naohiro Watanabe, Shinichi Wakamatsu, Masaki Watanabe, Satoshi Ogawa, Masana Shiba, Junichi Awamura, Naohito Shimota
  • Patent number: 8652719
    Abstract: A set of toners including yellow, cyan, magenta, and black toner, each of which containing a binder resin containing a crystalline resin and a non-crystalline resin, a releasing agent, and a corresponding coloring agent, wherein the following relationship is satisfied: 0.8<EBk/EFc<0.95, where EBk represents the amount of heat of melting (mJ/mg) for the black toner and EFc represents the average amount of heat of melting (mJ/mg) of the yellow toner, magenta toner, and cyan toner from 50° C. to 100° C. at the first temperature rising in differential scanning calorimetry (DSC).
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: February 18, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Osamu Uchinokura, Satoshi Ogawa, Junichi Awamura, Teruki Kusahara, Daisuke Ito, Daisuke Inoue
  • Publication number: 20140023584
    Abstract: It is intended to provide a novel contrast agent for photoacoustic imaging that is highly capable of binding to a target molecule and generates high photoacoustic signals. The present invention provides a contrast agent for photoacoustic imaging represented by Formula 1: MNP-((L)l-(P)m)n??(Formula 1) (wherein MNP represents a particle containing an iron oxide particle; L represents a linker molecule; P represents a ligand molecule; l represents 0 or 1; and m and n represent an integer of 1 or larger), the contrast agent for photoacoustic imaging including: a particle containing an iron oxide particle that absorbs light in a near-infrared region; and at least one or more ligand molecule(s) immobilized on the particle containing an iron oxide particle, wherein the immobilization density of the ligand molecule is equal to or higher than the cell surface density of a target molecule.
    Type: Application
    Filed: September 24, 2013
    Publication date: January 23, 2014
    Inventors: Fumio Yamauchi, Satoshi Ogawa, Kengo Kanazaki, Sachiko Inoue, Tatsuki Fukui, Masato Minami, Mayuko Kishi
  • Patent number: 8614043
    Abstract: A toner including a core particle, an inner shell layer covering the core, and an outer shell layer covering the inner shell layer is provided. The core particle includes a resin P. The inner shell layer includes fine particles of a resin A. The outer shell layer includes fine particles of a resin B. The toner satisfies the following formulae (1) to (3): 4.5?T½(P)?Tfb(P)?14??(1) 20?T½(A)?Tfb(A)?40??(2) 23.5?T½(B)?Tfb(B)?40??(3) wherein T½(P), T½(A), and T½(B) represent ½ method temperatures of the resins P, A, and B, respectively, and Tfb(P), Tfb(A), and Tfb(B) represent flow beginning temperatures of the resins P, A, and B, respectively, and wherein the ½ method temperatures and the flow beginning temperatures are measured by a flowtester.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: December 24, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Masaki Watanabe, Osamu Uchinokura, Junichi Awamura, Takahiro Honda, Satoshi Ogawa, Tsuneyasu Nagatomo, Hiroshi Yamashita
  • Patent number: 8610694
    Abstract: A writing device for displaying an image on a display layer having a containing portion in which electrophoretic particles are contained, includes: a casing; a power supply provided in the casing; an electrode portion which is provided in the casing and is electrically connected to the power supply; and a conductive portion which is provided in the casing and is electrically connected to the power supply, wherein display of the image is performed by electrically connecting the electrode portion to the display layer so that the conductive portion is electrically connected to the display layer.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: December 17, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Satoshi Ogawa
  • Publication number: 20130323178
    Abstract: Provided is the following indocyanine green (ICG)-containing particle to be used as, for example, a contrast agent for fluorescent imaging or photoacoustic imaging. The leakage of ICG from the particle in a serum is prevented and hence the particle can stably retain ICG. According to a particle characterized by having an aggregate of indocyanine green and a phospholipid, the leakage of ICG from the particle in a serum or the like is prevented and hence ICG can be stably retained in the particle.
    Type: Application
    Filed: August 6, 2013
    Publication date: December 5, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Fumio Yamauchi, Atsushi Takahashi, Kengo Kanazaki, Satoshi Ogawa, Masato Minami, Daisuke Sasaguri, Kouichi Kato, Yoshinori Tomida, Sachiko Yamauchi
  • Publication number: 20130316280
    Abstract: A toner set, including: at least one chromatic toner containing a colorant; and a transparent toner containing no colorant, wherein the chromatic toner and the transparent toner each include a releasing agent and a binder resin, and wherein an amount of a tetrahydrofuran insoluble matter in the transparent toner is smaller than an amount of a tetrahydrofuran insoluble matter in the chromatic toner.
    Type: Application
    Filed: May 20, 2013
    Publication date: November 28, 2013
    Inventors: Ryuuta YOSHIDA, Satoshi OGAWA, Masaki WATANABE, Hyo SHU, Naohiro WATANABE
  • Publication number: 20130315840
    Abstract: A compound including a polymer is represented by general formula (1): L-Y-A??(1) wherein, A is a single-chain antibody moiety, which is a polypeptide including an antigen-binding site, L is a linker moiety, which is a polypeptide including a protease cleavage site, Y is a peptide moiety, which includes 0 or more amino acids connecting the linker moiety L with the single-chain antibody moiety A, and the linker moiety L binds to an N terminus of the peptide moiety Y or an N terminus of the single-chain antibody moiety A.
    Type: Application
    Filed: April 30, 2013
    Publication date: November 28, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Satoshi Ogawa, Fumio Yamauchi, Kengo Kanazaki, Mayuko Kishi
  • Patent number: 8581885
    Abstract: A writing device for displaying an image on a display layer having a containing portion in which electrophoretic particles are contained, includes: a casing; a power supply provided in the casing; an electrode portion which is provided in the casing and is electrically connected to the power supply; and a conductive portion which is provided in the casing and is electrically connected to the power supply, wherein display of the image is performed by electrically connecting the electrode portion to the display layer so that the conductive portion is electrically connected to the display layer.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: November 12, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Satoshi Ogawa
  • Publication number: 20130244156
    Abstract: A toner for developing an electrostatic image, including: toner base particles each including a binder resin and a releasing agent; and inorganic fine particles, wherein the toner includes the inorganic fine particles as an external additive on a surface of the toner base particle, wherein the toner base particles have a BET specific surface area of 2.5 m2/g to 5.0 m2/g, and wherein the inorganic fine particles comprise inorganic fine particles (A) which are each a secondary particle where a plurality of primary particles are coalesced together.
    Type: Application
    Filed: March 11, 2013
    Publication date: September 19, 2013
    Inventors: Satoshi KOJIMA, Tsuneyasu Nagatomo, Syouko Satoh, Osamu Uchinokura, Junichi Awamura, Satoshi Ogawa, Takahiro Honda, Daisuke Ito, Teruki Kusahara, Masaki Watanabe, Daisuke Inoue, Kiwako Hirohara
  • Publication number: 20130244157
    Abstract: A toner, including: a binder resin; releasing agent-encapsulating capsules; and a colorant, wherein the releasing agent-encapsulating capsules each include: a capsule formed of a resin (I) which is different from the binder resin; and a releasing agent (RA) which is encapsulated in the capsule, and the releasing agent-encapsulating capsules exist in the binder resin, and wherein 50% to 100% of the releasing agent-encapsulating capsules exist in a region from a surface of the toner to a depth of 0.10 times a volume-average particle diameter of the toner.
    Type: Application
    Filed: March 11, 2013
    Publication date: September 19, 2013
    Inventors: Ryota INOUE, Hiroaki Katoh, Masahiro Seki, Shun Saito, Yoshitaka Sekiguchi, Yoshihiro Mikuriya, Kazuoki Fuwa, Satoshi Ogawa, Tomohiro Fukao, Takayuki Nakamura