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).

  • Patent number: 8501088
    Abstract: To provide a solder alloy, a solder ball and an electronic member having a solder bump, used for connection with a mother board or the like, having a melting temperature of less than 250° C. for the solder alloy, achieving high drop impact resistance required in mobile devices or the like. A solder alloy is used which consists of not less than 0.1 mass ppm of boron and not greater than 200 mass ppm of boron and a remainder comprising substantially not less than 40% by mass of Sn, in which its melting temperature is less than 250° C.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: August 6, 2013
    Assignees: Nippon Steel & Sumikin Materials Co., Ltd., Nippon Micrometal Corporation
    Inventors: Takayuki Kobayashi, Tsutomu Sasaki, Masamoto Tanaka, Katsuichi Kimura
  • Patent number: 8434856
    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: March 4, 2011
    Date of Patent: May 7, 2013
    Assignee: FUJIFILM Corporation
    Inventors: Yukio Sakashita, Tsutomu Sasaki
  • Patent number: 8419967
    Abstract: A perovskite oxide represented by a general expression, (Aa, Bb)(Cc, Dd, Xx)O3. (where, A: an A-site element, A=Bi, 0<a, B: one or more types of A-site elements, 0?b<1.0, C: an B-site element, C=Fe, 0 <c<1.0, D: one or more types of B-site elements, 0?d<1.0, 0<b+d, X: one or more types of B-site elements, the average valence of which is greater than the average valence of C and D in chemical formula, 0<x<1.0, (average valence of A-site in chemical formula) +(average valence of B-site in chemical formula)>6.0, O: oxygen, and standard molar ratio among A-site elements, B-site elements, and oxygen is 1:1:3, but it may deviate from the standard within a range in which a perovskite structure is possible.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: April 16, 2013
    Assignee: FUJIFILM Corporation
    Inventors: Tsutomu Sasaki, Yukio Sakashita, Hiroyuki Kobayashi
  • Patent number: 8366257
    Abstract: An inkjet recording apparatus includes a droplet ejection head, a head tank, a tube, an ink cartridge, and a liquid-feed pump. The droplet ejection head has a plurality of nozzles for ejecting ink. The head tank is mounted on the droplet ejection head, temporarily stores a certain amount of ink, and creates negative pressure in the droplet ejection head. The tube is connected to the head tank. The ink cartridge is connected via the tube to the head tank, the ink cartridge storing ink. The liquid-feed pump is disposed at the tube between the ink cartridge and the head tank to feed ink from the ink cartridge to the head tank through the tube. The liquid-feed pump is operable in reverse to feed ink from the head tank through the tube to the ink cartridge and create negative pressure in the head tank.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: February 5, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Tsutomu Sasaki, Shinta Moriya
  • Patent number: 8350142
    Abstract: An automatic player piano is equipped with an electronic supporting system, which makes a player learn an optimum pedal stroke to a half pedal region; while the player is practicing a music tune on the piano, the electronic supporting system monitors the damper pedal; when the player starts to depress the damper pedal, the electronic supporting system exerts an assisting force on the damper pedal so as to make the player feel the damper pedal light; when the damper pedal reaches an entrance of the half pedal region, the electronic supporting system removes the assisting force from the damper pedal so that the player feels the damper pedal heavy, whereby the player learns the pedal stroke to the half pedal region through the change of load borne by the player.
    Type: Grant
    Filed: April 26, 2010
    Date of Patent: January 8, 2013
    Assignee: Yamaha Corporation
    Inventors: Yuji Fujiwara, Tsutomu Sasaki
  • Patent number: 8350143
    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: Grant
    Filed: January 25, 2011
    Date of Patent: January 8, 2013
    Assignee: Yamaha Corporation
    Inventors: Yuji Fujiwara, Tsutomu Sasaki
  • Patent number: 8331811
    Abstract: A developing device includes: a developer storage portion which stores a liquid developer including toner and carrier liquid; a first coating member which rotates and coats the liquid developer stored in the developer storage portion; a second coating member which comes into contact with the first coating member and rotates in a direction opposite to that of the first coating member and slower than a rotary peripheral velocity of the first coating member; and a developer supporting body which comes into contact with the second coating member and rotates in the same direction as that of the second coating member and faster than a rotary peripheral velocity of the second coating member.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: December 11, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Kazuma Miyazawa, Tsutomu Sasaki, Ken Ikuma
  • Publication number: 20120294653
    Abstract: Developer is recovered by a development unit, a first squeeze unit, a second squeeze unit, and a photoreceptor cleaning unit, but the developer recovered by the development unit or the first squeeze unit has a relatively high concentration, and is therefore returned to a stirring tank for reuse. The developer recovered by the second squeeze unit or the photoreceptor cleaning unit has a relatively low concentration, and is therefore accumulated in a buffer tank separate from the stirring tank to prevent the toner concentration in the stirring tank from decreasing.
    Type: Application
    Filed: April 26, 2012
    Publication date: November 22, 2012
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Akihiro GOMI, Kazuhiro NISHIYAMA, Tsutomu SASAKI, Naoyuki OKUMURA
  • Patent number: 8295718
    Abstract: A concentration detection apparatus includes: a light-emitting element that emits light; a light-emitting-element holding unit that holds the light-emitting element; a light-receiving element that receives light emitted from the light-emitting element; a light-receiving-element holding unit that holds the light-receiving element and is provided opposite to the light-emitting-element holding unit with a gap therebetween; a moving unit that can move through or at the gap between the light-emitting-element holding unit and the light-receiving-element holding unit; and a gap adjusting unit that adjusts a value of the gap as a distance between the light-emitting-element holding unit and the light-receiving-element holding unit.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: October 23, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Kazuhiro Nishiyama, Akihiro Gomi, Tsutomu Sasaki
  • Publication number: 20120255895
    Abstract: A water purifier that performs back washing extremely effectively even when raw water contains a large amount of impurities includes an attachment main body including an inflow passage into which raw water from an inflow port flows, and first and second outflow passages through which water flows toward outflow ports; and a water purification main body that is attached rotatably to the attachment main body and includes a first flow passage, a second flow passage, and a third flow passage, a first filter member disposed between the first flow passage and the second flow passage and a second filter member disposed between the second flow passage and the third flow passage, wherein, when the attachment main body and the water purification main body are in a rotation position corresponding to a water purification mode, the first flow passage and the second flow passage communicate with the inflow passage and the first outflow passage, respectively, and when the attachment main body and the water purification main
    Type: Application
    Filed: April 6, 2011
    Publication date: October 11, 2012
    Applicant: BASIC CO., LTD.
    Inventors: Tsutomu SASAKI, Satoshi SASAKI
  • Publication number: 20120237276
    Abstract: An image forming apparatus of the invention includes a carrier solution application roller that rotates centering on a rotary shaft and applies a carrier solution to a transfer roller after an image of a liquid developer including toner and the carrier solution is transferred to a transfer medium, a transfer roller cleaning roller, supported by a cleaning member support portion through a rotary shaft, which removes toner remaining in the transfer roller, and a carrier solution application roller of which the amount of movement is larger than the amount of movement of the transfer roller cleaning roller when the cleaning member support portion is rotated. Even when the transfer roller moves, satisfactory cleaning properties are secured without breaking a mutual positional relationship by facilitating mutual positioning between the transfer roller and the transfer roller cleaning roller.
    Type: Application
    Filed: March 9, 2012
    Publication date: September 20, 2012
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Tsutomu SASAKI, Kazuhiro NISHIYAMA, Naoyuki OKUMURA, Hidehiro TAKANO, Ken IKUMA
  • Publication number: 20120237266
    Abstract: A driving force produced by a first driving motor is transmitted to a developing roller and an intermediate application roller by a first drive transmission unit, and the developing roller and the intermediate application roller are rotated as a result. The developing roller and the intermediate application roller thus take the first driving motor as a drive source, and receive the driving force from the first driving motor via the same first drive transmission unit. As a result, the phases of the fluctuation in a rotational component of the first driving motor and the cyclic fluctuation of gear interlocking match, which reduces a rotational velocity difference between the developing roller and the intermediate application roller.
    Type: Application
    Filed: February 15, 2012
    Publication date: September 20, 2012
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Kazuma MIYAZAWA, Tsutomu SASAKI, Kazuhiro NISHIYAMA, Naoyuki OKUMURA
  • Publication number: 20120219325
    Abstract: In a developing device which supplies a liquid developer to a developer holder roller using a supply member and performs development using the liquid developer, and an image forming apparatus including the developing device, a developer holder cleaning unit which cleans the developer holder roller and recovers the liquid developer in order to prevent the liquid developer after development from being adhered to the supply member, a supply member cleaning unit which cleans the supply member and recovers the liquid developer, a recovery path member which is disposed above the supply member in a vertical direction and receives the liquid developer recovered by the developer holder cleaning unit, and a recovery unit which is disposed above the recovery path member in the vertical direction and stores the liquid developer moved to the recovery path member and the liquid developer recovered by the supply member cleaning unit are provided.
    Type: Application
    Filed: February 14, 2012
    Publication date: August 30, 2012
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Tsutomu SASAKI, Kazuma MIYAZAWA, Kazuhiro NISHIYAMA, Naoyuki OKUMURA, Akihiro GOMI
  • Publication number: 20120213542
    Abstract: A developing roller which comes into contact with a latent image carrier drum on a first side with respect to an imaginary vertical plane passing through the rotation center of the latent image carrier drum, thereby developing a latent image which is carried on the latent image carrier drum by a liquid developer that includes toner and carrier liquid is provided, and a squeeze roller which comes into contact with the latent image carrier drum developed by the developing roller on a second side on the opposite side to the first side with respect to the imaginary vertical plane further on the upper side in the vertical direction than an imaginary horizontal plane passing through the rotation center of the latent image carrier drum and perpendicular to the imaginary vertical plane, thereby squeezing an image developed to the latent image carrier drum is provided.
    Type: Application
    Filed: February 15, 2012
    Publication date: August 23, 2012
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yuichiro TSUKADA, Tsutomu SASAKI, Kazuhiro NISHIYAMA, Kazuma MIYAZAWA, Naoyuki OKUMURA
  • Publication number: 20120207508
    Abstract: The image forming apparatus includes an image carrier drum on which a latent image is formed; a development unit which includes a development roller coming into contact with the image carrier drum on an upward side of a virtual horizontal plane, which is perpendicular to a virtual vertical plane passing through a rotation center of the image carrier drum, in a vertical direction and developing the latent image formed on the image carrier drum with a liquid developer containing toner and a carrier liquid; a squeeze unit which comes into contact with the image developed by the development roller on the upward side of the virtual horizontal plane in the vertical direction and includes a squeeze roller squeezing the image; and a transfer unit which transfers the image squeezed by the squeeze roller to a transfer member on a downward side of the virtual horizontal plane in the vertical direction.
    Type: Application
    Filed: February 2, 2012
    Publication date: August 16, 2012
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Kazuhiro NISHIYAMA, Kazuma MIYAZAWA, Yoshitomo HIRATA, Tsutomu SASAKI, Naoyuki OKUMURA, Yuichiro TSUKADA
  • Publication number: 20120207516
    Abstract: A collecting device according to the invention includes: a collecting unit that collects a liquid developer containing toner and a carrier liquid; a collected-liquid storage that stores the liquid developer collected by the collecting unit; a first transporting path that transports the liquid developer stored in the collected-liquid storage; a second transporting path that transports the liquid developer stored in the collected-liquid storage; and a control unit that switches transportation of the liquid developer stored in the collected-liquid storage to the first transporting path or the second transporting path.
    Type: Application
    Filed: January 27, 2012
    Publication date: August 16, 2012
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Kazuhiro NISHIYAMA, Akihiro GOMI, Tsutomu SASAKI
  • 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
  • Publication number: 20120201563
    Abstract: Provided is an image forming apparatus including: a latent image carrying drum on which a latent image is formed; a charging section that includes a corona charger charging the latent image carrying drum and an air flow duct formed in the corona charger so as to be long in the rotation axis direction of the latent image carrying drum so that air flows in the corona charger; a developing section that is disposed above the air flow duct in the vertical direction, is formed so as to be shorter than the air flow duct in the rotation axis direction of the latent image carrying drum, and develops the latent image formed on the latent image carrying drum by a liquid developing agent including toner and a carrier liquid.
    Type: Application
    Filed: January 30, 2012
    Publication date: August 9, 2012
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Kazuma MIYAZAWA, Tsutomu SASAKI, Hidehiro TAKANO, Michio SATO, Naoyuki OKUMURA, Satoru MIYAMOTO, Ken IKUMA
  • 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
  • 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