Patents by Inventor Tsutomu Sasaki

Tsutomu Sasaki 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).

  • Image Forming Apparatus and Image Forming Method
    Publication number: 20120201555
    Abstract: An image forming apparatus of the invention includes; a cleaning member that collects liquid developer by cleaning a developer carrier; a first transporting path that moves the liquid developer collected by the cleaning member; an oscillating member that applies vibration to the liquid developer transported from the first transporting path; a developer supply unit that stores the liquid developer transported from a first transporting mechanism; a second transporting mechanism that includes a second transporting path that transports the liquid developer stored in the developer supply unit to a developer storage in a developing unit; and a control unit that adjusts a toner charge current applied to the toner charging unit and controls vibration applied to the oscillating member on the basis of the adjusted toner charge current.
    Type: Application
    Filed: January 17, 2012
    Publication date: August 9, 2012
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Kazuhiro NISHIYAMA, Akihiro GOMI, Tsutomu SASAKI, Naotaka HIGUCHI
  • Image forming apparatus, developing method, and image forming method
    Patent number: 8180237
    Abstract: An image forming apparatus and method charges and exposes a latent image carrier to form a latent image. Bias is applied to liquid developer on a developer carrier, and liquid developer collected by a developer carrier cleaning member is stored in a collected developer storing portion. The state of the collected liquid developer is determined based on a state of bias application or detected image data, and a stirring amount of a conveying member that stirs the collected liquid developer is controlled based on the determined state to improve a property of the collected liquid developer conveyed to a storing unit.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: May 15, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Tsutomu Sasaki, Kazuhiro Nishiyama, Akihiro Gomi
  • Perovskite-oxide film, piezoelectric device, and liquid discharge device
    Patent number: 8151727
    Abstract: A film formed on a substrate different from the monocrystalline perovskite substrate contains a piezoelectric oxide expressed as A(BxC1-x)O3 other than Bi(FeySc1-y)O3 and Bi(Fe, Co)O3, where 0<x<1.0, 0.5=y=0.9, A, B, and C are metallic elements, A represents one or more A-site elements including Bi as a main component, B represents one or more B-site elements including as a main component an element which can constitute a perovskite structure together with the one or more A-site elements represented by A, and C represents one or more B-site elements which are unable or hard to constitute a perovskite structure together with the one or more A-site elements represented by A.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: April 10, 2012
    Assignee: FujiFilm Corporation
    Inventors: Tsutomu Sasaki, Yukio Sakashita
  • Developing device and image forming apparatus with liquid developer coating members
    Patent number: 8139983
    Abstract: A developing device includes a developer storage portion that stores a liquid developer including toner and carrier liquid. A first coating member rotates and coats the liquid developer stored in the developer storage portion. A second coating member contacts the first coating member and rotates in a direction opposite to that of the first coating member. A developer supporting body contacts the second coating member and rotates in the same direction as that of the second coating member. A contact member contacts the liquid developer coated on the second coating member by the first coating member.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: March 20, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Tsutomu Sasaki, Kazuma Miyazawa, Masahiro Fukazawa
  • Electronic assistant system for lesson in music and musical instrument equipped with the same
    Patent number: 8138401
    Abstract: While a player is fingering a music tune on a piano, an electronic assistant system monitors the keys to see whether or not the player starts to produce tones through a particular playing technique such as repetition; when the electronic assistant system finds particular key movements unique to the particular playing technique in an early stage, the electronic assistant system decides that the player intends to produce the tone through the particular playing technique, and forces the key to travel on a reference key trajectory in the later stage, whereby the player learns the particular playing technique.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: March 20, 2012
    Assignee: Yamaha Corporation
    Inventors: Yuji Fujiwara, Tsutomu Sasaki
  • BOILER
    Publication number: 20120042839
    Abstract: There is provided a boiler capable of preventing occurrence of a trouble accompanying transition cancel while enabling the transition cancel between combustion stages, in the boiler that controls a combustion amount in multiple combustion stages.
    Type: Application
    Filed: August 6, 2009
    Publication date: February 23, 2012
    Applicant: MIURA CO., LTD.
    Inventors: Tsutomu Sasaki, Ryo Miyagawa, Tetsuji Namoto, Koji Miura
  • LEAD-FREE SOLDER ALLOY, SOLDER BALL, AND ELECTRONIC MEMBER COMPRISING SOLDER BUMP
    Publication number: 20120038042
    Abstract: A lead-free solder alloy, a solder ball and an electronic member comprising a solder bump which enable the prevention of the occurrence of yellow discoloration on the surface of a solder after soldering, the surface of a solder bump after the formation of the bump in a BGA, and the surface of a solder bump after a burn-in test of a BGA. Specifically disclosed are: a lead-free solder alloy; a solder ball; and an electronic member comprising a solder bump, containing at least one additive element selected from Li, Na, K, Ca, Be, Mg, Sc, Y, lanthanoid series elements, Ti, Zr, Hf, Nb, Ta, Mo, Zn, Al, Ga, In, Si and Mn in the total amount of 1 ppm by mass to 0.1% by mass inclusive, with the remainder being 40% by mass or more of Sn.
    Type: Application
    Filed: April 12, 2010
    Publication date: February 16, 2012
    Applicants: Nippon Micrometal Corporation, Nippon Steel Materials Co., Ltd.
    Inventors: Tsutomu Sasaki, Shinichi Terashima, Masamoto Tanaka, Katsuichi Kimura
  • Process for preparing high purity corosolic acid and high purity ursolic acid
    Patent number: 8101795
    Abstract: According to the present invention, there is provided a process for preparing corosolic acid comprising the steps of (1) dissolving crude extract of Japanese loquat leaves in alkali and aqueous alcohol and (2) applying the solution to a nonpolar adsorption resin to obtain corosolic acid.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: January 24, 2012
    Assignees: Kenko Corporation, Tokiwa Phytochemical Co., Ltd.
    Inventors: Naoaki Yoshida, Chihiro Mori, Tsutomu Sasaki
  • Liquid developer transport device and image forming apparatus
    Patent number: 8078086
    Abstract: A liquid developer transport device includes a channel switching part that dispenses liquid developer to a first channel or a second channel. A filtering part filters liquid developer flowing in the first channel, and a first storage part stores the filter liquid developer. A second storage part stores liquid developer flowing in the second channel. The channel switching part switches channels when a toner particle concentration is more than a predetermined concentration.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: December 13, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Kazuhiro Nishiyama, Tsutomu Sasaki
  • PEROVSKITE OXIDE, OXIDE COMPOSITION, OXIDE BODY, PIEZOELECTRIC DEVICE, AND LIQUID DISCHARGE APPARATUS
    Publication number: 20110292134
    Abstract: A perovskite oxide, which includes a first component represented by General Formula (P1) given below and a second component represented by General Formula (P2) given below. (Bix1, Xx2) (Fez1, Mnz2)O3 ??(P1) (Ay1, Yy2)BO3 ??(P2) (where, Bi is an A-site element and X is an A-site element with an average ion valence of not less than four. A is one kind or a plurality of kinds of A site elements other than Pb with an average ion valence of two, Y is a one kind or a plurality of kinds of A-site elements with an average valence of not less than three. Fe and Mn are B-site elements, and B is one kind or plurality of kinds of B-site elements with an average ion valence of four.) 0.6?x1<1.0, 0?x2?0.4, 0.65?y1<1.0, 0?y2?0.4, x2+y2>0, 0.6?z1<1.0, 0?z2?0.4.
    Type: Application
    Filed: May 26, 2011
    Publication date: December 1, 2011
    Inventors: Tsutomu SASAKI, Yukio SAKASHITA
  • PEROVSKITE OXIDE, OXIDE COMPOSITION, OXIDE BODY, PIEZOELECTRIC DEVICE, AND LIQUID DISCHARGE APPARATUS
    Publication number: 20110292133
    Abstract: Disclosed is a non-lead perovskite oxide having a low Curie temperature and high ferroelectricity represented by General Formula (P) given below. (Bix1, Bax2, Xx3)(Fey1, Tiy2, Mny3)O3 ??(P) (where, Bi and Ba are A-site elements, X is one kind or a plurality of kinds of A-site elements, other than Pb and Ba, with an average ion valence of 2. Fe, Ti, and Mn are B-site elements. O is oxygen. 0<x1+X2<1.0, 0<x3<1.0, 0<y1+y2<1.0, 0?y3<1.0, 0<x1, 0<x2, 0<y1, 0<y2. The standard molar ratios among A-site elements, B-site elements, and oxygen are 1:1:3, but the molar ratios among them may deviate from the standard ratios within a range in which a perovskite structure may be formed.
    Type: Application
    Filed: May 26, 2011
    Publication date: December 1, 2011
    Inventors: Tsutomu SASAKI, Yukio Sakashita
  • CLEANING APPARATUS AND IMAGE FORMING APPARATUS
    Publication number: 20110262170
    Abstract: A cleaning apparatus includes a first cleaning roller, and a second cleaning roller. The first cleaning roller is contrived to contact to a circumferential surface against a moving member to be cleaned and to apply a bias to the member to be cleaned while rotating such that the circumferential surface of the first cleaning roller moves in a same direction as the member to be cleaned moves. The second cleaning roller is contrived to contact to the member to be cleaned after the member has been cleaned by the first cleaning roller and to rotate such that a circumferential surface of the second cleaning roller moves in a direction opposite a direction in which the member being cleaned moves.
    Type: Application
    Filed: April 20, 2011
    Publication date: October 27, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Itaru KOZUMA, Tomoyuki SHIIYA, Tsutomu SASAKI
  • Density measuring device, liquid developer storing apparatus, and image forming apparatus
    Patent number: 8023848
    Abstract: A density measuring device includes a moving member that can be moved in a liquid, a light emitting member and a light receiving member that receives light emitted by the light emitting member. A gap part in which the moving member is disposed in a path of light emitted from the light emitting member can be moved. A density measuring unit measures the density of the liquid based on the result of output of the light receiving member for a case where the moving member is located in the path of light emitted from the light emitting member and a case where the moving member is not located in the path of light emitted from the light emitting member.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: September 20, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Teruyuki Inukai, Toru Tanjo, Tsutomu Sasaki, Ken Ikuma
  • PEROVSKITE OXIDE, PROCESS FOR PRODUCING THE PEROVSKITE OXIDE, PIEZOELECTRIC BODY, PIEZOELECTRIC DEVICE, AND LIQUID DISCHARGE DEVICE
    Publication number: 20110216132
    Abstract: A process for producing a piezoelectric oxide having a composition (A, B, C)(D, E, F)O3, where each of A, B, C, D, E, and F represents one or more metal elements. The composition is determined so as to satisfy the conditions (1), (2), (3), and (4), 0.98?TF(P)?1.01,??(1) TF(ADO3)>1.0,??(2) TF(BEO3)<1.0, and??(3) TF(BEO3)<TF(CFO3)<TF(ADO3),??(4) where TF(P) is the tolerance factor of the perovskite oxide, and TF(ADO3), TF(BEO3), and TF(CFO3) are respectively the tolerance factors of the compounds ADO3, BEO3, and CFO3.
    Type: Application
    Filed: March 4, 2011
    Publication date: September 8, 2011
    Inventors: Yukio SAKASHITA, Tsutomu SASAKI
  • IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
    Publication number: 20110217083
    Abstract: The image forming apparatus includes a latent image carrier that holds a latent image thereon, a developer carrier that develops the latent image on the latent image carrier by using a liquid developer including a toner and a carrier liquid, a squeeze roller being in contact with the latent image carrier, that holds an image developed by the developer carrier, to squeeze the liquid developer on the latent image, and a control unit that applies a first bias to the squeeze roller, when a first position of the latent image carrier that does not hold the latent image is in contact with the squeeze roller, and that applies a second bias being different from the first bias to the squeeze roller, when a second position of the latent image carrier that holds the latent image is in contact with the squeeze roller.
    Type: Application
    Filed: March 1, 2011
    Publication date: September 8, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Tsutomu SASAKI, Naotaka HIGUCHI
  • Method of measuring and adjusting density of liquid developer by detecting movement of moving member in light path
    Patent number: 8014691
    Abstract: A method of measuring density includes detecting movement of a moving member in a light path of light emitted from a light emitting member, measuring an output of a light receiving member for a case where the moving member is moved in the light path, as a first output, detecting that the moving member is not in the light path, measuring an output of the light receiving member for a case where the moving member is not in the light path, as a second output, and calculating density based on the first output and the second output.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: September 6, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Teruyuki Inukai, Toru Tanjo, Tsutomu Sasaki, Ken Ikuma
  • Perovskite oxide, process for producing the same, piezoelectric film, and piezoelectric device
    Patent number: 7997692
    Abstract: A process for producing a perovskite oxide having a composition expressed by the compositional formulas A(B, C)O3, and determined so as to satisfy the conditions (1), (2), and (3), 0.98<TF(PX)<1.01, (1) TF(ABO3)>1.0, and (2) TF(ACO3)<1.0, (3) where each of A, B, and C represents one or more metal elements, the main component of one or more A-site elements is bismuth, the composition of one or more B-site element represented by B is different from the composition of one or more B-site element represented by C, TF(PX) is the tolerance factor of the oxide expressed by the compositional formula A(B, C)O3, and TF(ABO3) and TF(ACO3) are respectively the tolerance factors of the oxides expressed by the compositional formulas ABO3 and ACO3.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: August 16, 2011
    Assignee: Fujifilm Corporation
    Inventors: Yukio Sakashita, Tsutomu Sasaki
  • KEYBOARD MUSICAL INSTRUMENT
    Publication number: 20110185876
    Abstract: A keyboard musical instrument provides plural keys of a keyboard to be driven by an automatic playing system; although the automatic playing system selectively drives the keys in accordance with a performance rule expressing a music tune, a motion controller of the automatic playing system changes the performance rule if the human player drives the keys different from those defined in the performance rule so that the automatic playing system changes a part of the music tune in real time fashion during the automatic performance.
    Type: Application
    Filed: January 25, 2011
    Publication date: August 4, 2011
    Applicant: YAMAHA CORPORATION
    Inventors: Yuji FUJIWARA, Tsutomu Sasaki
  • Development device and image forming device
    Patent number: 7957676
    Abstract: A development device includes a developer container reserving a liquid developer containing toner particles and a carrier liquid. A developer supply member supplies a developer supporting member with liquid developer. An agitating member is disposed in the developer container and supplies the developer supply member with the liquid developer. A developer supporting member cleaning member removes liquid developer on the developer supporting member.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: June 7, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Toru Tanjo, Tsutomu Sasaki
  • Perovskite oxide, process for producing the perovskite oxide, piezoelectric body, piezoelectric device, and liquid discharge device
    Patent number: 7918542
    Abstract: A process for producing a piezoelectric oxide having a composition (A, B, C) (D, E, F)O3, where each of A, B, C, D, E, and F represents one or more metal elements. The composition is determined so as to satisfy the conditions (1), (2), (3), and (4), 0.98?TF(P)?1.01,??(1) TF(ADO3)>1.0,??(2) TF(BEO3)<1.0, and??(3) TF(BEO3)<TF(CFO3)<TF(ADO3),??(4) where TF(P) is the tolerance factor of the perovskite oxide, and TF(ADO3), TF(BEO3), and TF(CFO3) are respectively the tolerance factors of the compounds ADO3, BEO3, and CFO3.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: April 5, 2011
    Assignee: Fujifilm Corporation
    Inventors: Yukio Sakashita, Tsutomu Sasaki