Patents by Inventor Teizo Fujita
Teizo Fujita 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).
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Patent number: 4371922Abstract: A process stepping sequential controller includes a random access memory for a memory for programming and a process stepping counter, whereby a program from a console is written thereto or altered therein, and also includes a display unit for monitoring the input from the console and the running program, the random access memory including program areas each adapted to store instruction codes, codes representing the stepping condition of the program, and output setting codes under which control is commanded at its step.Type: GrantFiled: August 11, 1980Date of Patent: February 1, 1983Assignee: Izumi Denki CorporationInventors: Teizo Fujita, Hidetaka Dohmoto, Shigeru Toyoda
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Patent number: 4315123Abstract: A switching apparatus assembly structure is disclosed in which a plurality of blocks including actuator blocks, contact blocks, a transformer blocks and direct power-supply adapter blocks are previously prepared as independent units which can be coupled together into a releasably interlocked structure, and two or more of desired ones of the above blocks are assembled to construct any desired one of smaller-size switching apparatus assemblies including a push button switch assembly, a selector switch assembly, a push button switch assembly of lockable type, a push button switch assembly with illumination, a selector switch assembly with illumination and a push button switch assembly of lockable type with illumination.Type: GrantFiled: April 9, 1980Date of Patent: February 9, 1982Assignee: Izumi Denki CorporationInventors: Teizo Fujita, Haruo Kimura
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Patent number: 4276631Abstract: An electronic timer having two electromagnetic relays is disclosed. The two electromagnetic relays are mounted on an insulating base plate. The electronic timer further comprises a delay circuit. At least one of the two electromagnetic relays is connected to an external power supply through the delay circuit. These two electromagnetic relays may be connected in such a manner that when connected with an external power supply, one of them is operated instantaneously while the other is actuated after a delay time, or in such a manner that both of them are simultaneously operated after a predetermined delay time, or in such a manner that they are operated after different delay times.Type: GrantFiled: April 3, 1978Date of Patent: June 30, 1981Assignee: Izumi Denki CorporationInventors: Teizo Fujita, Toshiro Ohashi, Kouji Takimoto
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Patent number: 4227162Abstract: An electromagnet relay is disclosed. The relay comprises at least one electromagnet relay-contact assembly and a housing for containing the electromagnet relay-contact assembly. The electromagnet relay-contact assembly comprises at least one contact block including at least one of a normally-open contact and a normally-closed contact, an electromagnet device including a coil wound on an iron core and a relay armature for actuating the contacts by energization of the coil, and lead-out terminals for the contacts and the coil. The bottom wall of the housing is formed with a downwardly-protruded expansion, and a recess is formed in the inner surface of the bottom wall corresponding to the expansion. The electromagnet relay-contact assembly is contained in the inner space of the housing in such a manner that the lower half of the coil is substantially placed within the recess. The lead-out terminals are extended downwardly through longitudinal flat portions connected with the expansion of the bottom wall.Type: GrantFiled: February 28, 1979Date of Patent: October 7, 1980Assignee: Izumi Denki CorporationInventors: Teizo Fujita, Toyokazu Ikebata, Harumi Fujisato
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Patent number: 4220808Abstract: The present invention is directed to a unique device for mounting electrical apparatus to a wall panel, wherein the device includes a main body portion having a cavity for holding components of the electrical apparatus and a pillar-shaped portion attached to the main body portion and extending through an opening in the wall panel. A free end of the pillar-shaped portion includes a plurality of outwardly protruding steps which overlap the wall panel, with a first set of the steps having a first axial length and a second set of the steps having a second, shorter axial length. A biasing member extends between the main body portion and the wall panel and biases the wall panel into contact with only the first set of steps, creating a gap between the wall panel and the second set of steps. A cover member surrounds the free end of the pillar-shaped portion and extends into the gap, with the second set of steps biasing the cover into contact with the wall panel.Type: GrantFiled: February 21, 1978Date of Patent: September 2, 1980Assignee: Izumi Denki CorporationInventor: Teizo Fujita
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Patent number: 4157463Abstract: A switch apparatus comprises at least one contact block which is adapted to be connected with other contact blocks similar thereto in multiple stages quickly and easily. Each contact block includes a casing, a connector for causing the contact block to mechanically engage the casing of another contact block similar in shape or a lamp transformer block, at least one electrical contact contained in the casing, and a contact actuator member for actuating the contact. The contact actuator member is supported movably between a first position where the contact is unactuated and a second position where it is actuated. The contact actuator member is normally urged to the first position by bias means such as springs. In assemblying the contact blocks, the contact actuator member may be selected from a group consisting of plural contact actuator members in various forms so as to actuate the contact blocks in upper and lower stages in either the same or different operation mode.Type: GrantFiled: August 3, 1977Date of Patent: June 5, 1979Assignee: Izumi Denki CorporationInventor: Teizo Fujita
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Patent number: 4104602Abstract: A pneumatic timer is disclosed which includes a base plate, a vertical frame member consisting of a frame perpendicular to the base plate and a horizontal frame. The horizontal frame portion includes a central opening, the vertical frame portion includes a pair of vertically extending grooves. A timing mechanism is received in the central opening in the horizontal frame portion including a displaceable element displaceable axially of the central opening in the base plate and a knob disposed on top of the horizontal frame portion. An electromagnet is fixed inside the vertical frame portion in a region surrounded with the horizontal and vertical frame portions.Type: GrantFiled: December 7, 1976Date of Patent: August 1, 1978Assignee: Izumi Denki CorporationInventors: Teizo Fujita, Shunzo Yoshida, Toshio Koizumi
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Patent number: 4080583Abstract: An electrical motor-driven timer has a frame, which has a substantially rectangular section and which is comprised of a main plate, a substantially L-shaped frame member and a switch mechanism support member. A switch mechanism is mounted on one side of the support member. An electromagnetic device is received in the substantially lower half part of the frame for operating the switch mechanism. A timing mechanism is received in the substantially upper half part of the frame for actuation and timing operation of the switch mechanism.Type: GrantFiled: October 6, 1976Date of Patent: March 21, 1978Assignee: Izumi Denki CorporationInventor: Teizo Fujita
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Patent number: 4066838Abstract: An apparatus for detachably mounting an electrical assembly unit to a supporting frame comprises a rotatable threaded rod mounted on the supporting frame and extending in the direction along which the electrical unit is moved to be mounted or detached. Pressing means is mounted on the threaded rod movably in the axial direction thereof. Stop means is fixedly provided on the electrical unit in such position to be engaged by the pressing means. By rotating the threaded rod in one direction, the stop means is forcefully engaged with the pressing means, whereby the electrical unit is moved to the tightly clamped position. The rotation of the threaded rod in the other direction causes the movement of the pressing means in the opposite direction, whereby the stop and hence the electrical assembly unit are moved to the removed or detached position under the pressing force of the engaged pressing means.Type: GrantFiled: April 30, 1976Date of Patent: January 3, 1978Assignee: Izumi Denki CorporationInventors: Teizo Fujita, Tosiro Ohashi
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Patent number: 3984825Abstract: Alarm apparatus for providing a distinctive indication of an alarm condition and comprising a visual alarm device such as a signal lamp and also an aural indication device comprising either a bell or buzzer. In response to an alarm input, an astable multivibrator is operated to a condition where it alternately provides respectively opposite outputs at its two output terminals. In response thereto, the lamp is intermittently energized to provide a flashing signal output, and the buzzer or bell is energized to provide a distinctive alarm signal. An acknowledge push button is also provided which, when actuated in response to an alarm indication, operates the astable multivibrator to a further condition in which both outputs of the multivibrator assume the same output condition, and in response to this the lamp becomes steadily energized and the bell or buzzer becomes deenergized.Type: GrantFiled: October 1, 1974Date of Patent: October 5, 1976Assignee: Izumi Denki Company LimitedInventor: Teizo Fujita
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Patent number: 3947789Abstract: A motor timer comprises a prefabricated timing mechanism block including a drive motor, a reduction gear, a clutch and a timing gear; a prefabricated contact mechanism block including a leaf-spring contact assembly and an actuating member for actuating the leaf spring contact interconnecting; and means for assemblying the blocks at a final stage of assembly.Type: GrantFiled: November 11, 1974Date of Patent: March 30, 1976Assignee: Izumi Denki Company LimitedInventors: Teizo Fujita, Tosiro Ohashi, Toyohiko Chiba
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Patent number: D248016Type: GrantFiled: August 2, 1976Date of Patent: May 30, 1978Assignee: Izumi Denki Company LimitedInventors: Teizo Fujita, Toshiro Ohashi
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Patent number: D248092Type: GrantFiled: August 2, 1976Date of Patent: June 6, 1978Assignee: Izumi Denki Company LimitedInventors: Teizo Fujita, Toshiro Ohashi
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Patent number: D248149Type: GrantFiled: August 2, 1976Date of Patent: June 13, 1978Assignee: Izumi Denki Company LimitedInventors: Teizo Fujita, Toshiro Ohashi
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Patent number: D250184Type: GrantFiled: October 5, 1976Date of Patent: November 7, 1978Assignee: Izumi Denki CorporationInventors: Teizo Fujita, Syunzo Yoshida, Toshio Koizumi
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Patent number: D251840Type: GrantFiled: December 22, 1976Date of Patent: May 15, 1979Assignee: Izumi Denki CorporationInventor: Teizo Fujita
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Patent number: D255350Type: GrantFiled: October 4, 1977Date of Patent: June 10, 1980Assignee: Izumi Denki CorporationInventors: Teizo Fujita, Syunzo Yoshida