Patents by Inventor Mitsuo Tanaka
Mitsuo Tanaka 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: 5064255Abstract: An opening/closing device of a door for a refrigerator or the like will open/close the door member at a desired side, namely, at the right side or at the left side, without requiring a movable operating handle. The device is simple in construction, has a high adiabatic efficiency, and can be easily incorporated in the door member. Therefore, no special mechanism is necessary in the door member and no structural change is required inside the door member.Type: GrantFiled: May 14, 1990Date of Patent: November 12, 1991Assignee: Sharp Kabushiki KaishaInventors: Yoshio Inui, Masayoshi Osaka, Mitsuo Tanaka, Masao Miyamoto, Tooru Hasegawa, Masuo Kamitaka, Hidekazu Kai, Hiroshi Kamikubo
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Patent number: 5059234Abstract: A sheet glass bending apparatus includes a pressing stage disposed downstream of a heating furnace and a quenching stage disposed downstream of the pressing stage. The sheet glass bending apparatus also comprises a lifting/lowering member for vertically moving a ring mold which supports a lower surface of a glass sheet in the pressing stage, and a shuttle reciprocally movable between the pressing stage and the quenching stage while holding the ring mold, the shuttle being operable to receive the ring mold from and transfer the ring mold to the lifting/lowering member.Type: GrantFiled: May 11, 1990Date of Patent: October 22, 1991Assignee: Nippon Sheet Glass Co., Ltd.Inventors: Hideo Yoshizawa, Mitsuo Tanaka
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Patent number: 4975738Abstract: A method of forming images on both sides of a plurality of sheets by an image forming apparatus having an image forming unit and a sheet path selection unit comprises a repetition of a group of substeps as a job unit, the group of substeps including substeps of feeding a predetermined number of new sheets to the image forming unit, forming the images on a first side of the sheets, turning over the side of the sheets by the sheet path selection unit, refeeding the predetermined number of sheets to the image forming unit responsive to the turning-over of each sheet, forming the images on a second side of the sheets by the image forming unit, and discharging the predetermined number of sheets by the sheet path selection unit each time the sheet is formed with the image on the second side thereof, wherein said substep of feeding the new sheets is commenced for a new job unit when the last sheet of the currently performed job unit is fed to the sheet path selection unit after formed with the image on its second siType: GrantFiled: January 18, 1990Date of Patent: December 4, 1990Assignee: Ricoh Company, Ltd.Inventors: Toshitaka Senma, Mitsuo Tanaka
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Patent number: 4947583Abstract: An opening/closing device of a door for a refrigerator or the like will open/close the door member at a desired side, namely, at the right side or at the left side, without requiring a movable operating handle. The device is simple in construction, has a high adiabtic efficiency, and can be easily incorporated in the door member. Therefore, no special mechanism is necessary in the door member and no structural change is required inside the door member.Type: GrantFiled: May 5, 1989Date of Patent: August 14, 1990Assignee: Sharp Kabushiki KaishaInventors: Yoshio Inui, Masayoshi Osaka, Mitsuo Tanaka, Masao Miyamoto
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Patent number: 4732054Abstract: A stepless speed change device comprises internally toothed ratchet rings arranged in plural rows side by side in an axial direction on an inner circumference of a driving rotary member on an input side through one-way clutches interposed therebetween, a stationary ring fixed to a frame of a bicycle and encircling the driving rotary member, a plurality of planet rollers rotatably fitted in the driving rotary member at plural locations, pawls in plural rows to engage ratchets of the internally toothed ratchet rings and having bottoms pivotally connected to an eccentric cam whose eccentricity relative to a center shaft is adjustable, and a resilient member provided in contact with the planet rollers to produce the frictional transmission between the stationary ring and the internally toothed ratchet rings respectively and the planet rollers.Type: GrantFiled: June 19, 1986Date of Patent: March 22, 1988Assignee: Bridgestone Cycle Co., Ltd.Inventors: Kikuzo Takamiya, Masakazu Inaba, Kunitoshi Kozakae, Mitsuo Tanaka
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Patent number: 4699263Abstract: A feeding and processing apparatus has a plurality of intermediate conveyor members disposed between upstream and downstream conveyor means, the intermediate conveyor members being vertically spaced. The feeding and processing apparatus also includes a device for vertically moving the intermediate conveyor members and a device disposed in the vicinity of at least a portion of the intermediate conveyor members for processing objects thereon.Type: GrantFiled: October 30, 1985Date of Patent: October 13, 1987Assignee: Nippon Sheet Glass Co., Ltd.Inventors: Koichi Nakamura, Mitsuo Tanaka
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Patent number: 4603674Abstract: A gas-diesel dual fuel engine operative with both a gaseous fuel and a diesel fuel oil. The engine has an electronic governor circuit adapted to receive both a speed signal representing actual speed of engine and a set speed signal representing a predetermined command speed of the engine, electric actuators adapted to actuate a diesel fuel injection pump and a gaseous fuel regulating valve, respectively, in response to the signal from the electronic governor circuit, and a mode switching control circuit connected to the electronic governor circuit and adapted to switch the operation of the electric actuators between a diesel fuel operation mode and a gaseous fuel operation mode.Type: GrantFiled: June 16, 1982Date of Patent: August 5, 1986Assignee: Yanmar Diesel Engine Co., Ltd.Inventor: Mitsuo Tanaka
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Patent number: 4601963Abstract: A photosensitive drum includes a cylindrical core which may be fixedly mounted on a rotating shaft and which is comprised of an elastic material and an outer sleeve which is provided on the outer peripheral surface of the core and which includes a supporting layer and a photosensitive layer formed on the supporting layer. A combination of the elastic core and the outer sleeve is constructed such that the drum only deforms locally at a point where an external force is applied and its immediate vicinity while maintaining the other portion virtually unchanged. In one form, the outer sleeve is fixedly mounted on the core, and, in another form, the outer sleeve is detachably mounted on the core. In the latter case, it is so structured that no relative movement takes place between the core and the outer sleeve even if external forces are applied to the drum.Type: GrantFiled: April 16, 1984Date of Patent: July 22, 1986Assignee: Ricoh Company, Ltd.Inventors: Michio Takahashi, Mitsuo Tanaka, Fuchio Kanno, Kazuo Kobayashi
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Patent number: 4576137Abstract: A gas-diesel dual fuel engine operative with both a gaseous fuel and a diesel fuel oil. The engine has an electronic governor circuit adapted to receive both a speed signal representing actual speed of engine and a set speed signal representing a predetermined command speed of the engine, electric actuators adapted to actuate a diesel fuel injection pump and a gaseous fuel regulating valve, respectively, in response to the signal from the electronic governor circuit, and a mode switching control circuit connected to the electronic governor circuit and adapted to switch the operation of the electric actuators between a diesel fuel operation mode and a gaseous fuel operation mode.Type: GrantFiled: July 19, 1985Date of Patent: March 18, 1986Assignee: Yanmar Diesel Engine Co., Ltd.Inventor: Mitsuo Tanaka
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Patent number: 4504943Abstract: In order to enhance the general purposeness of a time domain multiplexer for digital channel signals of unequal bit rates, the time domain multiplexer is constructed of a plurality of channel units which provide information signals and bit rate signals of input channel signals, a plurality of logic circuits which multiplex the information signals from the channel units, and a control circuit which selects and combines the logic circuits in accordance with the bit rate signal so as to construct a multiplexer conforming with the bit rate.Type: GrantFiled: August 17, 1982Date of Patent: March 12, 1985Assignee: Hitachi, Ltd.Inventors: Katsuyuki Nagano, Yasushi Takahashi, Yoshitaka Takasaki, Mitsuo Tanaka
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Patent number: 4501576Abstract: A power transmission mechanism includes a gear member and an annular and eccentric floating member having internal gear teeth meshed with external gear teeth of the gear member. A pair of guide plates provided on both outer sides of either the gear member or floating member prevent lateral disengagement of the floating member from the gear member. A pair of seal rings arranged between the inner sides of the guide plates and the outer sides of either the floating member or gear member prevent entry of dust or the like foreign material into a substantially closed space between the teeth of the gear member and the floating member, to thereby improve the durability of the mechanism.Type: GrantFiled: November 2, 1982Date of Patent: February 26, 1985Assignee: Bridgestone Cycle Co., Ltd.Inventors: Mitsuo Tanaka, Kunitoshi Kozakae
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Patent number: 4442369Abstract: The present invention consists in that insulating fillers on the sides of superconductive field coils disposed on a coil-carrying shaft in the rotor of a superconductive rotary electric machine are separated into padding plates mounted so as to cover all the sides of the superconductive field coils, and the other portions, thereby to prevent the damage of the insulation between the turns of the field coils and to firmly fix the field coils.Type: GrantFiled: June 15, 1982Date of Patent: April 10, 1984Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Kouichi Okamoto, Masaki Sakuyama, Mitsuo Tanaka
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Patent number: 4410980Abstract: In a time division multiplexing system for multiplexing a plurality of channels having mutually-independent bit rates, the improvement wherein the pulse signals of each channel are converted into codes so that the information "1" is represented by a pulse having a width of two consecutive transmission clock periods ("0,0" or "1,1") the information "0" is represented by a pluse having a width of a single transmission clock period ("0" or "1"), and polarities of adjacent pulses are always different from each other; the pulse signals are compressed time-wise in a frame unit; and a frame synchronizing signal and a channel synchronizing signal, each consisting of marks or spaces having a duration of at least three consecutive transmission clock periods, are added to the intervals between the time-compressed frames to thereby perform time division multiplexing.Type: GrantFiled: July 31, 1981Date of Patent: October 18, 1983Assignee: Hitachi, Ltd.Inventors: Yoshitaka Takasaki, Mitsuo Tanaka
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Patent number: 4331100Abstract: A magnetic brush development apparatus includes a developer containing magnetic powder therein which is attracted to a non-magnetic support member by a magnet arranged therein. The developer is brought into contact with a latent electrostatic image bearing member which is located in a development section for developing the latent electrostatic image. The magnet has substantially one magnetic pole portion capable of producing a magnetic field having a plurality of peaks in the intensity of the magnetic field located in the development section.Type: GrantFiled: August 25, 1980Date of Patent: May 25, 1982Assignee: Ricoh Company, Ltd.Inventors: Manabu Mochizuki, Masahide Harada, Mitsuo Tanaka, Kouji Suzuki, Kazuaki Tagawa, Kazuo Kobayashi
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Patent number: 4261560Abstract: The sheet separation apparatus for separating a transfer sheet from a toner image bearing photoconductor for use in an electrophotographic copying machine comprises a plurality of separators which are rotatably mounted on a shaft arranged parallel to the photoconductor, and each of the separators is independently urged into pressure contact with the surface of the photoconductor by a spring member through a control member which is substantially integral with the shaft. In one embodiment of the sheet separation apparatus, the control member serves as a protector for preventing toner particles from being scattered from the surface of the photoconductor and in another embodiment of the sheet separation apparatus, the shaft can be turned about a predetermined point of one end portion of the shaft in the direction that the other end portion of the shaft can be moved away from the photoconductor for easy maintenance of the sheet separation apparatus.Type: GrantFiled: December 20, 1978Date of Patent: April 14, 1981Assignee: Ricoh Company, Ltd.Inventors: Nobuyuki Yanagawa, Mitsuo Tanaka, Kimio Tanaka
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Patent number: D322429Type: GrantFiled: January 2, 1990Date of Patent: December 17, 1991Assignee: Seiko Epson CorporationInventor: Mitsuo Tanaka
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Patent number: D322602Type: GrantFiled: June 8, 1990Date of Patent: December 24, 1991Assignee: Seiko Epson CorporationInventor: Mitsuo Tanaka
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Patent number: D324234Type: GrantFiled: October 12, 1989Date of Patent: February 25, 1992Assignee: Seiko Epson CorporationInventor: Mitsuo Tanaka
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Patent number: D325195Type: GrantFiled: March 19, 1990Date of Patent: April 7, 1992Assignee: Seiko Epson CorporationInventor: Mitsuo Tanaka
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Patent number: D326679Type: GrantFiled: June 25, 1990Date of Patent: June 2, 1992Assignee: Seiko Epson CorporationInventors: Mitsuo Tanaka, Hitoshi Igarashi