Patents by Inventor Tadashi Hasegawa
Tadashi Hasegawa 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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Publication number: 20020196393Abstract: An object of the present invention is to provide a liquid crystal display, which can surely perform an instillation process used when liquid crystal is sealed between substrates in a cell process, and a fabrication method thereof. A liquid crystal display comprises a sealing material 6 made of a photo-curing type material which seals liquid crystal 22 sandwiched between substrates 4 and 16, and a shading film 8 having a shading area which overlays a red-colored layer 28 transmitting red light, a green-colored layer 26 transmitting green light and a blue-colored layer 24 transmitting blue light, wherein only the blue-colored layer 24 is formed in an area of the shading film contacting with the sealing material 6 and the photo-curing type material of the sealing material is structured to have a light reactive area for a wavelength of blue color band.Type: ApplicationFiled: May 20, 2002Publication date: December 26, 2002Applicant: Fujitsu LimitedInventors: Kunihiro Tashiro, Takuya Yoshimi, Yoshio Koike, Satoru Imai, Hideaki Tsuda, Hiroyasu Inoue, Satoshi Murata, Hidehiko Suzuki, Hidefumi Yoshida, Tadashi Hasegawa, Yoji Taniguchi, Norimichi Nakayama, Hiroyuki Sugimura, Minoru Otani
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Publication number: 20020185769Abstract: The object of the present invention is to provide a plastic molded material having uniform foamed structure at a low price. To attain said object, a method comprising; mixing particle containing 30 to 70% by weight of water in thermoplastic resin, heating and melting said thermoplastic resin in which said particles containing water are mixed under a high pressure, releasing said high pressure to form foamed structure and cooling to solidify said foamed thermoplastic resin.Type: ApplicationFiled: June 4, 2002Publication date: December 12, 2002Applicant: Shiraishi Central Laboratories Co., Ltd.Inventors: Tadashi Hasegawa, Takashi Korenaga
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Patent number: 6480255Abstract: An image display area is defined in a main surface of a first substrate, and a terminal area is defined outside the display area. A plurality of first bus lines are arranged on the display area of the main surface of the first substrate. A first insulating layer covers the first bus lines on the main surface of the first substrate. The first bus lines correspond to external terminals on the terminal area of the first substrate, respectively. The external terminals are connected electrically with the corresponding first bus lines, respectively, through first contact holes that pass through the first insulating layer to the upper surface of the first bus lines. The external terminals are covered with a protective insulating layer in such a manner that their ends near the border of the first substrate remain uncovered.Type: GrantFiled: June 21, 2001Date of Patent: November 12, 2002Assignee: Fujitsu LimitedInventors: Atuyuki Hoshino, Tadashi Hasegawa
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Publication number: 20020059441Abstract: A network server, a transmission control method and a recording medium are provided for controlling an access to an information resource easily and flexibly. A WWW server has transmission control means for controlling transmission of a hypertext. The hypertext includes an access permission information concerning permission of the access to the hypertext. The transmission control means control the transmission of the hypertext to a terminal device in accordance with the access permission information when the terminal device requests for the access to the hypertext.Type: ApplicationFiled: March 21, 2001Publication date: May 16, 2002Inventor: Tadashi Hasegawa
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Patent number: 6362553Abstract: An object of the present invention is to provide a low cost, high performance, thin structure rotary motor for driving medium used in magnetic disk drive unit, optical disk drive unit or the like, in order to improve the productivity of terminating processing and the reliability of the coils. Magnetic materials which are divided to a plurality of blocks or divided corresponding to respective magnetic pole teeth are connected by means of thin portions. The respective magnetic pole teeth are wound continuously with wire without cutting the wire at the positions in which the thin portions are connected. When a stator is assembled, a plurality of blocks or magnetic pole teeth are disposed on a substrate by separating or bending the thin portions.Type: GrantFiled: December 23, 1998Date of Patent: March 26, 2002Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Yuji Nakahara, Kenichi Azuma, Masaru Matsumoto, Youichi Fujita, Satoru Akutsu, Akira Hashimoto, Yasunori Takai, Tadashi Hasegawa, Hiroshi Miyazaki, Junji Kawada
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Publication number: 20010050747Abstract: An image display area is defined in a main surface of a first substrate, and a terminal area is defined outside the display area. A plurality of first bus lines are arranged on the display area of the main surface of the first substrate. A first insulating layer covers the first bus lines on the main surface of the first substrate. The first bus lines correspond to external terminals on the terminal area of the first substrate, respectively. The external terminals are connected electrically with the corresponding first bus lines, respectively, through first contact holes that pass through the first insulating layer to the upper surface of the first bus lines. The external terminals are covered with a protective insulating layer in such a manner that their ends near the border of the first substrate remain uncovered.Type: ApplicationFiled: June 21, 2001Publication date: December 13, 2001Applicant: FUJITSU LIMITEDInventors: Atuyuki Hoshino, Tadashi Hasegawa
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Patent number: 6323571Abstract: An object of the present invention is to provide a low cost, high performance, thin structure rotary motor for driving medium used in magnetic disk drive unit, optical disk drive unit or the like, in order to improve the productivity of terminating processing and the reliability of the coils. Magnetic materials which are divided to a plurality of blocks or divided corresponding to respective magnetic pole teeth are connected by means of thin portions. The respective magnetic pole teeth are wound continuously with wire without cutting the wire at the positions in which the thin portions are connected. When a stator is assembled, a plurality of blocks or magnetic pole teeth are disposed on a substrate by separating or bending the thin portions.Type: GrantFiled: July 11, 2000Date of Patent: November 27, 2001Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Yuji Nakahara, Ken-ichi Azuma, Masaru Matsumoto, Youichi Fujita, Satoru Akutsu, Akira Hashimoto, Yasunori Takai, Tadashi Hasegawa, Hiroshi Miyazaki, Junji Kawada
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Patent number: 6182806Abstract: The present invention provides a hydraulic shock absorber 10, with a cylinder 12 which is filled with a hydraulic fluid; a piston 14 connected to one end of a piston rod 15, which is slidably located in the cylinder; and a free piston 47 which is slidably located in the cylinder so as to partition the cylinder into a gas chamber 45 and an oil chamber 16A, and wherein a gas chamber cartridge 48 is inserted into one side of the cylinder 12 so as to be fixed thereto, and the free piston 47 slidably disposed in a gas chamber case 46 of the gas chamber cartridge 48, defining one chamber partitioned by the free pistion 47 of the gas chamber case 46 as the gas chamber 45 encloses a gas therein, and defining the other chamber partitioned by the free pistion 47 of the gase chamber case 46 as connected to the oil chamber 16A on the other side of the cylinder 12.Type: GrantFiled: August 12, 1998Date of Patent: February 6, 2001Assignee: Showa CorporationInventor: Tadashi Hasegawa
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Patent number: 6167610Abstract: Magnetic materials which are divided into a plurality of blocks or divided corresponding to respective magnetic pole teeth are connected by means of thin portions. The respective magnetic pole teeth are wound continuously with wire without cutting the wire at the positions in which the thin portions are connected. When a stator is assembled, a plurality of blocks or magnetic pole teeth are disposed on a substrate by separating or bending the thin portions.Type: GrantFiled: January 3, 1996Date of Patent: January 2, 2001Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Yuji Nakahara, Ken-ichi Azuma, Masaru Matsumoto, Youichi Fujita, Satoru Akutsu, Akira Hashimoto, Yasunori Takai, Tadashi Hasegawa, Hiroshi Miyazaki, Junji Kawada
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Patent number: 6122226Abstract: A combination electronic watch equipped with an optic power generating unit is provided, wherein a solar member and a liquid crystal member 4c are overlapped one onto the other and windows 4c are formed on the solar member so that a digital display will become possible at any location on the watch display surface and warnings for charging will be simultaneously provided by both the analog display of hands and the digital display.Type: GrantFiled: April 30, 1998Date of Patent: September 19, 2000Assignee: Citizen Watch Co., Ltd.Inventors: Eiki Murakami, Teruhiko Fujii, Tadashi Hasegawa
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Patent number: 6121711Abstract: An object of the present invention is to provide a low cost, high performance, thin structure rotary motor for driving medium used in magnetic disk drive unit, optical disk drive unit or the like, in order to improve the productivity of terminating processing and the reliability of the coils. Magnetic materials which are divided to a plurality of blocks or divided corresponding to respective magnetic pole teeth are connected by means of thin portions. The respective magnetic pole teeth are wound continuously with wire without cutting the wire at the positions in which the thin portions are connected. When a stator is assembled, a plurality of blocks or magnetic pole teeth are disposed on a substrate by separating or bending the thin portions.Type: GrantFiled: March 24, 1999Date of Patent: September 19, 2000Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Yuji Nakahara, Ken-ichi Azuma, Masaru Matsumoto, Youichi Fujita, Satoru Akutsu, Akira Hashimoto, Yasunori Takai, Tadashi Hasegawa, Hiroshi Miyazaki, Junji Kawada
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Patent number: 5859486Abstract: An object of the present invention is to provide a low cost, high performance, thin structure rotary motor for driving medium used in magnetic disk drive unit, optical disk drive unit or the like, in order to improve the productivity of terminating processing and the reliability of the coils. Magnetic materials which are divided to a plurality of blocks or divided corresponding to respective magnetic pole teeth are connected by means of thin portions. The respective magnetic pole teeth are wound continuously with wire without cutting the wire at the positions in which the thin portions are connected. When a stator is assembled, a plurality of blocks or magnetic pole teeth are disposed on a substrate by separating or bending the thin portions.Type: GrantFiled: November 1, 1994Date of Patent: January 12, 1999Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Yuji Nakahara, Ken-ichi Azuma, Masaru Matsumoto, Youichi Fujita, Satoru Akutsu, Akira Hashimoto, Yasunori Takai, Tadashi Hasegawa, Hiroshi Miyazaki, Junji Kawada
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Patent number: 5851003Abstract: Objective To avoid undesirable contact between the moving side stopper and the fixed side stopper, to maximize the contact width at the time of hitting, to decrease damages, wearing, etc. to those stoppers, and to improve reliability of the moving side stopper and the fixed side stopper in terms of rigidity and durability. Solution To provide a motor operated valve comprising a valve body 20, a screw fed valve stem 30 and a shaft 35, a motor 10 which rotationally drive the aforementioned shaft 35, a sleeve 40 having a convexed moving side stopper 41 which is rotated with the aforementioned shaft 35 as a monolithic structure, and a fixed bearing washer having a convexed fixed side stopper 55 to which the aforementioned moving side stopper 41 hits, and where a clearance slope 41a to avoid hitting the fixed side stopper 55 is provided on the rear part, looking in the rotational direction, of the aforementioned moving side stopper 41.Type: GrantFiled: November 4, 1996Date of Patent: December 22, 1998Assignee: Fujikoki CorporationInventors: Tetsuya Aoki, Tadashi Hasegawa, Tomoari Ohuchi
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Patent number: 5811136Abstract: A screw-in-plunger injection apparatus is provided which is advantageously used for molding either a large-size or a small-size product. The injection apparatus is capable of selectively carrying out a plunger-type injection operation and an inline-screw-type injection operation. In the plunger-type injection operation, an injection plunger 12 and a screw 10 are advanced in an injection cylinder 14, so that a melted resin fed to a storage space provided on the side of one axial end of the injection plunger 12 is injected. In the inline-screw-type injection operation, a surface of the axial end of the injection plunger 12 is held in abutment with the injection cylinder 14, so that the storage space is reduced to provide a reduced storage space to and from which the melted resin is fed by the rotation of the screw and is injected by the movement of the screw in an axial direction thereof.Type: GrantFiled: November 21, 1996Date of Patent: September 22, 1998Assignees: Kabushiki Kaisha Meiki Seisakusho, Aronkasei Co., Ltd.Inventors: Ryozo Morita, Tadashi Hasegawa, Yoshimitsu Tabata, Shigemi Kushida, Shinichi Nakamura
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Patent number: 5804230Abstract: An injection molding machine for thermoplastic resin consisting of an accumulator in which a plunger is slidably provided and an injection mold, the sprue of which connects with the nozzle of said accumulator, wherein said plunger consists of a cylinder and a screw rotatably arranged in said cylinder, the tip of said screw protrudes from the front end of said cylinder and the maximum diameter of said tip is larger than the diameter of said screw, and the ratio of the effective volume of said plunger to the effective volume of said accumulator is in the range between 1:4 to 1:10 is provided in the present invention. By using said injection molding machine a large size product can be molded at a low injection pressure.Type: GrantFiled: January 15, 1997Date of Patent: September 8, 1998Assignee: Aronkasei Co., Ltd.Inventors: Tadashi Hasegawa, Yoshimitsu Tabata, Shigemi Kushida, Shinichi Nakamura
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Patent number: 5801802Abstract: First and second substrates are disposed facing each other. Drive wiring lines including signal and control lines are formed on the first substrate on the side facing the second substrate. A pixel electrode is formed on the first substrate in the pixel region and on the side facing the second substrate. A switching element is provided for each pixel electrode. A common electrode is formed on the second substrate on the side facing the first substrate. A liquid crystal layer is sandwiched between the first and second substrates. An alignment film is formed on one of the first and second substrates on the side facing the other substrate. A pre-tilt angle is imparted so that the ends of each liquid crystal molecule in the central region of the liquid crystal layer near the drive wiring line tilt away from the drive wiring line when a voltage is applied across each pixel electrode and the common electrode.Type: GrantFiled: September 9, 1996Date of Patent: September 1, 1998Assignee: Fujitsu LimitedInventors: Hiroyasu Inoue, Minoru Otani, Tadashi Hasegawa
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Patent number: 5796458Abstract: An element division liquid crystal display device with a liquid crystal inserted between first and second plates having alignment films, respectively. The alignment film of at least the first plate includes a single layer of alignment material having a plurality of first and second adjacent domains A and B and is continuously rubbed in one direction through first and second minute domains A and B. A further treatment, different from a rubbing treatment, is effected to the single alignment layer so that a pretilt angle of the liquid crystal contacting the alignment layer at one of the first and second domains is different from the pretilt angle of the liquid crystal contacting the alignment layer at the other domain. The further treatment includes one of the steps of irradiating with UV light, changing the chemical components of the material of the alignment layer, heating or changing the precuring process.Type: GrantFiled: January 29, 1996Date of Patent: August 18, 1998Assignee: Fujitsu LimitedInventors: Yoshio Koike, Tsuyoshi Kamada, Syun Tsuyuki, Noriaki Furukawa, Shigeru Masuda, Satoshi Murata, Tadashi Hasegawa, Takashi Sasabayashi, Seiji Tanuma, Takatoshi Mayama, Katufumi Ohmuro
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Patent number: 5629056Abstract: The liquid crystal display panel which has improved viewing angle characteristics, is free from deterioration of a liquid crystal, enables the alignment division to be easily and ensurely carried out and has a simple structure. The liquid crystal display panel is constructed so that substrates sandwiching a liquid crystal therebetween each have an alignment film at their inner walls, at least one of the alignment films comprises a layer of a particular polyimide film material capable of inducing a change in surface energy upon the action of light or heat energy, the alignment film comprises an assembly of two adjacent minute domains and has been continuously rubbed in one direction along the minute domains and the two minute domains are different from each other in pretilt angle (defined as an angle at which liquid crystalline molecules rise from the surface of the substrate).Type: GrantFiled: June 21, 1996Date of Patent: May 13, 1997Assignee: Fujitsu LimitedInventors: Yoshio Koike, Tsuyoshi Kamada, Syun Tsuyuki, Noriaki Furukawa, Shigeru Masuda, Satoshi Murata, Tadashi Hasegawa, Takashi Sasabayashi, Seiji Tanuma, Takatoshi Mayama, Katsufumi Ohmuro, Minoru Ohtani
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Patent number: 5311910Abstract: A piston-type accumulator has a cylindrical outer case, a piston slidably fitted in the cylindrical outer case, and a cap mounted in an open end of the outer case. The piston-type accumulator includes a cap attachment structure in which said cap has two larger- and smaller-diameter steps on an outer circumferential surface. The cylindrical outer case is deformed by staking on said larger- and smaller-diameter steps. The piston has an annular recess defined in an outer circumferential surface thereof axially between two seals thereon. The annular recess communicates with the atmosphere through a collapsible tube.Type: GrantFiled: February 19, 1992Date of Patent: May 17, 1994Assignee: Kabushiki Kaisha Showa SeisakushoInventors: Tadashi Hasegawa, Masanobu Miyazaki, Haruya Oka
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Patent number: 4992647Abstract: A ticket processing terminal device includes a hopper to store medium that is to become prescribed tickets, a separation and pick-up section for separating and picking up one sheet of medium at a time from the hopper, a stacker to store those of the tickets inserted through the insertion opening which are replaced by the medium, a print section for printing on the ticket that has been inserted through the insertion opening or the medium picked up from the hopper, and is to be discharged through a discharge opening, a transport path to transport the tickets and medium between the above mentioned component elements, and a ticket information reader for magnetically or optically reading the information that has been given to the ticket, and a magnetic write section disposed along the transport path for writing, erasing or rewriting on the magnetic stripe if the ticket inserted through the insertion opening or the medium picked up from the hopper has such a magnetic stripe.Type: GrantFiled: April 25, 1988Date of Patent: February 12, 1991Assignee: Oki Electric Industry Co., Ltd.Inventors: Hiroshi Konishi, Haruo Kimura, Yoshihiro Nakamura, Toshiharu Hashimoto, Tadashi Hasegawa, Sadao Sone