Patents by Inventor Tetsuo Machida

Tetsuo Machida 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: 11798770
    Abstract: A microwave tube includes an electron gun that emits an electron beam; a magnetic circuit that focuses the electron beam emitted from the electron gun; a collector that captures the electron beam that has passed through the magnetic circuit; a high frequency circuit that is spirally arranged around the electron beam focused by the magnetic circuit and that transmits a high frequency; and a magnetic body part arranged around the electron gun so as to be movable in an emission direction of the electron beam. A high frequency output from the high frequency circuit is controlled to be constant by moving the magnetic body part in an emission direction of the electron beam.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: October 24, 2023
    Assignee: NEC Network and Sensor Systems, Ltd.
    Inventor: Tetsuo Machida
  • Publication number: 20220399178
    Abstract: A microwave tube comprises an electron gun that emits an electron beam; a magnetic circuit that focuses the electron beam emitted from the electron gun; a collector that captures the electron beam that has passed through the magnetic circuit; a high frequency circuit that is spirally arranged around the electron beam focused by the magnetic circuit and that transmits a high frequency; and a magnetic body part arranged around the electron gun so as to be movable in an emission direction of the electron beam, wherein a high frequency output from the high frequency circuit is controlled to be constant by moving the magnetic body part in an emission direction of the electron beam.
    Type: Application
    Filed: December 1, 2020
    Publication date: December 15, 2022
    Applicant: NEC NETWORK AND SENSOR SYSTEMS, LTD.
    Inventor: Tetsuo MACHIDA
  • Patent number: 7688163
    Abstract: A pillbox vacuum window of the present invention has a first metal part and a second metal part. The first metal part includes a ceramic disk formed with a metallization layer in a peripheral area thereof, a larger diameter cylindrical portion, and a smaller diameter cylindrical portion having an inner diameter smaller than that of the larger diameter cylindrical portion, and coupled to the larger diameter cylindrical portion to form a step section at a joint, where the ceramic disk is fitted into the step section. The second metal part includes a cylindrical portion, where the cylindrical portion is inserted into the step section of the first metal part while the ceramic disk is placed in the step section of the first metal part.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: March 30, 2010
    Assignee: NEC Microwave Tube, Ltd.
    Inventor: Tetsuo Machida
  • Publication number: 20070241845
    Abstract: A pillbox vacuum window of the present invention has a first metal part and a second metal part. The first metal part includes a ceramic disk formed with a metallization layer in a peripheral area thereof, a larger diameter cylindrical portion, and a smaller diameter cylindrical portion having an inner diameter smaller than that of the larger diameter cylindrical portion, and coupled to the larger diameter cylindrical portion to form a step section at a joint, where the ceramic disk is fitted into the step section. The second metal part includes a cylindrical portion, where the cylindrical portion is inserted into the step section of the first metal part while the ceramic disk is placed in the step section of the first metal part.
    Type: Application
    Filed: April 11, 2007
    Publication date: October 18, 2007
    Applicant: NEC MICROWAVE TUBE, LTD.
    Inventor: Tetsuo MACHIDA
  • Patent number: 7003179
    Abstract: Sheet definition data stored in a sheet definition data managing apparatus is supplied when necessary to a sheet recognizing apparatus to reduce a configuration cost of a sheet definition database. A sheet recognizing system has: a sheet definition managing apparatus including a sheet definition data generating apparatus for generating sheet definition data representative of a relation between a data writing field of a sheet and the written data and a charge managing apparatus for claiming a charge in accordance with a use degree of the sheet definition data by a sheet recognizing and processing apparatus; a communication network for transmitting the sheet definition data managed by the sheet definition data managing apparatus to the sheet recognizing and processing apparatus; and a sheet recognizing apparatus for recognizing the type of the sheet by referring to the sheet definition data acquired via the network.
    Type: Grant
    Filed: April 18, 2001
    Date of Patent: February 21, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Akihiro Kawaoka, Tetsuo Machida, Tetsuro Kiyomatsu, Toshinori Kajiura
  • Publication number: 20020003901
    Abstract: Sheet definition data stored in a sheet definition data managing apparatus is supplied when necessary to a sheet recognizing apparatus to reduce a configuration cost of a sheet definition database. A sheet recognizing system has: a sheet definition managing apparatus including a sheet definition data generating apparatus for generating sheet definition data representative of a relation between a data writing field of a sheet and the written data and a charge managing apparatus for claiming a charge in accordance with a use degree of the sheet definition data by a sheet recognizing and processing apparatus; a communication network for transmitting the sheet definition data managed by the sheet definition data managing apparatus to the sheet recognizing and processing apparatus; and a sheet recognizing apparatus for recognizing the type of the sheet by referring to the sheet definition data acquired via the network.
    Type: Application
    Filed: April 18, 2001
    Publication date: January 10, 2002
    Inventors: Akihiro Kawaoka, Tetsuo Machida, Tetsuro Kiyomatsu, Toshinori Kajiura
  • Patent number: 5559932
    Abstract: A detachable built-in printer for printing print data supplied from a computer has at least an interface controller for interfacing with the computer, a print pattern generator, a printing unit, and a printer controller for controlling the whole operation of the printer, respectively assembled on a PC card in conformity with PCMCIA/JEIDA. A computer system with a detachable built-in printer is configured by a computer with a PC card slot and the detachable built-in printer inserted into the PC card slot. It is therefore possible to realize a printer capable of being detachably connected to and built in a computer, and a computer system with such a built-in and removable printer.
    Type: Grant
    Filed: January 27, 1995
    Date of Patent: September 24, 1996
    Assignee: Hitachi, Ltd.
    Inventors: Tetsuo Machida, Toshihiko Matsuda, deceased, Akihiro Kawaoka, Toshinori Kajiura
  • Patent number: 5448485
    Abstract: A route information input apparatus for specifying a route from an entraining station to an arrival station including a pointing device operated by the user to designate a position on a display screen and a data processing apparatus for executing a data processing in accordance with a program prepared in advance each time the user operates the pointing device to thereby change a displayed content on the display screen. On the basis of positional informations of major stations stored in a first file, a line diagram presented in the simplified form in which truly existing stations are partly omitted and in which the major stations are connected by means of line segments is displayed on a first area of the display screen. A group of station name data omitted from the line diagram displayed on the first area are selectively displayed on a second area of the display screen in the form of a table.
    Type: Grant
    Filed: December 3, 1992
    Date of Patent: September 5, 1995
    Assignees: Hitachi, Ltd., Hitachi Microcomputer System Ltd.
    Inventors: Katsunori Ishibashi, Kouji Fukuda, Masatoshi Hino, Tetsuo Machida, Tadahiko Masuda, Kazuhisa Takura, Isamu Machida, Kunio Fujisaki
  • Patent number: 5385461
    Abstract: The present invention provides an injection molding die unit having a simple construction and an injection molding method employing the injection molding die unit and capable of molding a composite molding in a short cycle time. After molding a first molding (70), a male die (30) is moved together with the first molding (70) by a distance (Gb) in direction (L) and, at the same time, a movable female die (14B) of a composite female die (14) is moved by the same distance (Gb) in the same direction (L) by a coil spring (29) to form a space (72) between the male die 30 and the composite female die (14) consisting of the movable female die (14B) and a fixed female die (14A), and a second molding material is injected into the space (72) to form a second molding (80).
    Type: Grant
    Filed: June 14, 1993
    Date of Patent: January 31, 1995
    Assignee: Sony Corporation
    Inventor: Tetsuo Machida
  • Patent number: 5372770
    Abstract: The present invention provides an injection molding die unit having a simple construction and an injection molding method employing the injection molding die unit and capable of molding a composite molding in a short cycle time. After molding a first molding (70), a male die (30) is moved together with the first molding (70) by a distance (Gb) in direction (L) and, at the same time, a movable female die (14B) of a composite female die (14) is moved by the same distance (Gb) in the same direction (L) by a coil spring (29) to form a space (72) between the male die (30) and the composite female die (14) consisting of the movable female die (14B) and a fixed female die (14A), and a second molding material is injected into the space (72) to form second molding (80).
    Type: Grant
    Filed: May 19, 1992
    Date of Patent: December 13, 1994
    Assignee: Sony Corporation
    Inventor: Tetsuo Machida
  • Patent number: 5340528
    Abstract: An injection molding die includes a fixed half die and a movable half die which has a core surface and which is provided with ejector pins. The ejector pins are held with their extremities retracted from the core surface to form recesses corresponding to compression allowances. The ejector pins are advanced toward the cavity to compress the compression allowances after a molten resin has been injected into the injection molding die in a manner which fills the cavity and the recesses. The compression with the ejector pins renders the pressure distribution int he cavity uniform, so that a molding can be formed with a high degree of accuracy and so that the injection molding cycle time can be reduced.
    Type: Grant
    Filed: February 16, 1993
    Date of Patent: August 23, 1994
    Assignee: Sony Corporation
    Inventors: Tetsuo Machida, Hiroyuki Kiso, Nobuyuki Sasaki, Hiroshi Kondo
  • Patent number: 5161081
    Abstract: Molten resin is ejected from the gate provided in the wall of a mold, which corresponds to the face of the head insertion opening of a disk cartridge, so that the molded half of the disk cartridge has scarcely any defect in the surface thereof.
    Type: Grant
    Filed: November 27, 1991
    Date of Patent: November 3, 1992
    Assignee: Sony Corporation
    Inventors: Tetsuo Machida, Tatsuya Yamazaki
  • Patent number: 5117468
    Abstract: An image processing system for extracting a plurality of local images each composed of m.times.n pixels, successively from a two-dimensional original image, to process the extracted local images and to convert the original imae into a second image composed of modified pixel data corresponding to the local images is disclosed which system includes a plurality of local image extracting circuits for temporarily storing time-sequentially applied pixel data in each local image extracting circuit while shifting the storage position thereof, to deliver m.times.
    Type: Grant
    Filed: February 28, 1990
    Date of Patent: May 26, 1992
    Assignee: Hitachi, Ltd.
    Inventors: Masatoshi Hino, Kouji Fukuda, Tetsuo Machida
  • Patent number: 5068802
    Abstract: A graphic drawing method and system are provided to display a composite graphic composed of a plurality of fundamental graphics wherein an operator designates at least two points on a display screen using a pointing device to automatically display a straight line or a curve coupling the two points. As the coordinates input mode, there are provided an ordinary input mode and an auto-adjust mode. If a coordinate input command is given in the auto-adjust mode, it is determined whether the coordinates already inputted are present within a small area spaced apart by a predetermined distance from the cursor position. If present in the small, predetermined area, the coordinates already inputted are used as the present input coordinates. If not present in the small, predetermined area, the position coordinates of the cursor are used as the input coordinates.
    Type: Grant
    Filed: August 3, 1990
    Date of Patent: November 26, 1991
    Assignees: Hitachi, Ltd., Hitachi Microcomputer Engineering, Ltd.
    Inventors: Koujirou Miyashita, Tetsuo Machida
  • Patent number: 5052046
    Abstract: An image processing apparatus that processes image data consecutively in the column and row directions has an image memory, a reading unit, a temporary memory and an operative unit. The image memory stores image data consecutively in column and row directions on a pixel unit basis. The reading unit reads from the image memory a series of pixels within one column at one row and at least one pixel adjacent to the one row in the column direction. The temporary memory sequentially stores a number of groups of pixels read from the reading unit as is necessary for image processing. The operation unit reads the values of an objective pixel and pixels necessary for a neighborhood operation of the objective pixel from the temporary memory, and subjects the values to a neighborhood operation to determine the output value of the objective pixel.
    Type: Grant
    Filed: May 17, 1989
    Date of Patent: September 24, 1991
    Assignee: Hitachi, Ltd.
    Inventors: Kouji Fukuda, Masatoshi Hino, Tetsuo Machida
  • Patent number: 4974196
    Abstract: In a multi-window system, a plurality of windows are set on a display screen, and data processed results are displayed independently for each window, first and second windows are set on the display screen. When an operator inputs a series of commands so as to effect data processing on the first window, the data processed results based on the inputted commands are displayed on the first window, whereas the inputted commands are sequentially displayed in addition to already inputted commands on the second window.
    Type: Grant
    Filed: September 20, 1988
    Date of Patent: November 27, 1990
    Assignee: Hitachi, Ltd.
    Inventors: Hidefumi Iwami, Tetsuo Machida, Fumio Wakamori, Tsuguo Miyake
  • Patent number: 4866520
    Abstract: Lower resolution video signals (10) having alternating odd fields (12) and even fields (14) are stored in an odd line memory 20A and an even line 20B, respectively. An interpolator 22 interpolates adjacent odd and even lines. A selector 24 cyclically selects odd, even, and interpolated lines in a pre-selected pattern, such as one of the patterns illustrated in FIGS. 1, 7, 8A-F, and 9A-F. By selecting even, odd, and interpolated lines, the number of lines per picture is increased to produce a higher resolution video signal (30).
    Type: Grant
    Filed: February 29, 1988
    Date of Patent: September 12, 1989
    Assignee: Hitachi, Ltd.
    Inventors: Kunihiro Nomura, Tetsuo Machida, Kazunari Yamada, Toshio Takekoshi
  • Patent number: 4829294
    Abstract: In a document processing method using a multiwindow including a display device having a display screen on which a plurality of windows are established, a virtual screen memory in which a plurality of virtual screens each corresponding to programs are generated to output results of data processing by programs, a memory unit for storing therein a window control table defining corresponding relationships between the virtual screens and the windows, and a control device for referencing the window control table and for outputting contents of each virtual screen in a window associated with the virtual screen on the display screen, copy source attribute data including an identifier of a second window established in the display screen and data defining a second partial region in the second window is memorized in correspondence with a first partial region on the vertical screen so that, in response to a command inputted by an operator while painting to the first partial region displayed in the first window, the displa
    Type: Grant
    Filed: June 23, 1987
    Date of Patent: May 9, 1989
    Assignee: Hitachi, Ltd.
    Inventors: Hidefumi Iwami, Kuniaki Tabata, Tetsuo Machida, Tuguo Miyake, Fumiya Murata
  • Patent number: 4809345
    Abstract: Method of and apparatus for converting a first two-dimensional image on first column direction and row direction scales to a second two-dimensional image on second column direction and row direction scales at a high speed, in which use is made of the periodicity of the positional relation between the image elements of the first image arranged in matrix and having various data values and the image elements of the second image arranged in matrix and having various data values to determine, for each one of the second image elements, four second image elements lying on the intersections between two adjacent rows and two adjacent columns in the first image element matrix which rows and columns surround the second image element and constitute a reference from for the second image element, and in which the data value for each second image element is calculated on the basis of the data values of the four first image elements associated with the first image element and the vertical and horizontal coordinates within th
    Type: Grant
    Filed: August 29, 1986
    Date of Patent: February 28, 1989
    Assignee: Hitachi, Ltd.
    Inventors: Kuniaki Tabata, Tetsuo Machida, Haruo Takeda, Naoki Takada, Yasuyuki Okada
  • Patent number: 4808989
    Abstract: A display control apparatus comprises area specifier, area determiner and signal selector. The area specifier specifies at least one area of a bit map memory. The area determiner determines whether the scan position on the bit map memory is in the specified area or not, and, according to the determination, controls the signal selector so as to send the output of the bit map memory directly or through a look-up table to a display unit. In a modification, the signal selector selects the signal to be sent to the display unit from among the outputs of different look-up tables.
    Type: Grant
    Filed: December 17, 1985
    Date of Patent: February 28, 1989
    Assignee: Hitachi, Ltd.
    Inventors: Kuniaki Tabata, Tetsuo Machida, Masatoshi Hino, Kunihiro Nomura