Patents by Inventor Yumi Sakamoto

Yumi 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: 20240085815
    Abstract: An electrostatic image developing toner includes toner particles including a binder resin. When loss tangents tan ? at a temperature of 90° C. and a strain of 1%, a temperature of 90° C. and a strain of 50%, a temperature of 150° C. and a strain of 1%, and a temperature of 150° C. and a strain of 50%, the loss tangents tan ? being determined by measurement of dynamic viscoelasticity of the electrostatic image developing toner, are defined as D1(90), D50(90), D1(150), and D50(150), respectively, D1(90), D50(90), D1(150), and D50(150) are each 0.5 or more and 2.5 or less, D50(150)?D1(150) is less than 1.5, and D50(90)?D1(90) is less than 1.0; the toner particles further include resin particles; and the number average molecular weight of a component of the toner particles, the component being soluble in tetrahydrofuran, is 5000 or more and 15000 or less.
    Type: Application
    Filed: November 15, 2023
    Publication date: March 14, 2024
    Applicant: FUJIFILM BUSINESS INNOVATION CORP.
    Inventors: Shinya SAKAMOTO, Masaki IWASE, Yumi TANAKA
  • Patent number: 5737246
    Abstract: A depth measuring device suitable for use in a dive watch is provided.
    Type: Grant
    Filed: May 9, 1995
    Date of Patent: April 7, 1998
    Assignee: Seiko Epson Corporation
    Inventors: Tsuneaki Furukawa, Naoshi Furuta, Yumi Sakamoto, Kazuko Yoshida
  • Patent number: 5712832
    Abstract: An electronic clock for indicating a time including a source oscillator having a predetermined frequency, a frequency divider circuit for dividing down the frequency of the source oscillator, an input device for generating a continuous input signal when actuated, an input control circuit for detecting the input signal from the input device, an input time counting circuit for counting a period of time from the clock signal during which the input control circuit detects a continuous input signal from the input device, an input time detecting circuit for detecting when the period of time counted by the input time counting circuit equals at least one predetermined value, and a setting increment/decrement control circuit to establish successive predetermined periods of time determined by at least one predetermined value, the rate at which the set time is incremented or decremented is varied in each predetermined period of time by changing a value of a unit of time to be added to or subtracted from the set time.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: January 27, 1998
    Assignee: Seiko Epson Corporation
    Inventor: Yumi Sakamoto
  • Patent number: 5559762
    Abstract: An electronic alarm clock including a clock timing circuit for counting the basic time, an alarm time setting circuit for setting an alarm time and an alarm time storing circuit storing said alarm time. The electronic alarm clock also includes an alarm coincidence detecting circuit for detecting the coincidence between the basic time and the alarm time stored in said alarm timing storing circuit, an alarm setting/resetting circuit and an alarm sounding control circuit for causing an alarm sounding circuit to sound when said alarm setting/resetting circuit is set and said alarm coincidence detecting circuit detects the coincidence between said basic time and said alarm time.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: September 24, 1996
    Assignee: Seiko Epson Corporation
    Inventor: Yumi Sakamoto
  • Patent number: 5027409
    Abstract: An apparatus for audibly outputting a series of numbers represented by words and divided into blocks includes a voice data memory group for storing voice data. The voice data memory group includes a commonly used memory for storing voice data which may be utilized for any of the blocks, word ending memory for storing voice data corresponding to word endings which have a distinct intonation dependent upon for which block they are to be used and a block only memory for storing block specific voice data. A block voice selecting unit selects the memory from which the voice data is to be output from among the common use memory, word ending memory and the block only memory in accordance with the block type and the number to be output.
    Type: Grant
    Filed: May 10, 1989
    Date of Patent: June 25, 1991
    Assignee: Seiko Epson Corporation
    Inventor: Yumi Sakamoto
  • Patent number: 4953033
    Abstract: An image forming apparatus forms an image of an input image information by use of a font, and comprises a memory part for storing data on bit map fonts and outline fonts, a setting part for setting a minimum size of an outline font which may be used, a first selecting part for selecting a desired kind of font, a second selecting part for selecting a size of the desired kind of font selected by the first selecting part, and an image forming part for forming the image of the input image information by use of the desired kind and size of font selected by the first and second selecting parts based on corresponding data read out from the memory part.
    Type: Grant
    Filed: June 8, 1988
    Date of Patent: August 28, 1990
    Assignee: Ricoh Company, Ltd.
    Inventor: Yumi Sakamoto
  • Patent number: 4879699
    Abstract: A timepiece includes an audio output device operable for announcing a plurality of different audio functions including stopwatch, timer, automatic time of day, alarm and user requested time of day. Selecting circuitry chooses among the group of audio functions based on a predetermined prioritized order. The device is operable for announcing one or more of the audio functions at different levels of sound volume.
    Type: Grant
    Filed: September 23, 1988
    Date of Patent: November 7, 1989
    Assignee: Seiko Epson Corporation
    Inventor: Yumi Sakamoto