Patents by Inventor Hiroyuki Fujimoto
Hiroyuki Fujimoto 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: 20030027050Abstract: In an electrode for a rechargeable lithium battery which includes a current collector and a thin film composed of active material that has the capability to store and release lithium either electrochemically or chemically and deposited on the current collector, the current collector comprises a copper alloy and has a tensile strength of 400 N/mm2 or higher, a proportional limit of 160 N/mm2 or higher, an elastic coefficient of 1.1 N/mm2 or higher and a surface roughness Ra of 0.01-1 &mgr;m at its surface that carries the thin film of active material thereon.Type: ApplicationFiled: April 18, 2002Publication date: February 6, 2003Inventors: Takashi Okamoto, Hiroyuki Fujimoto, Toyoki Fujihara, Masahiro Iyori, Maruo Kamino, Shigeki Matsuta
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Publication number: 20020138584Abstract: In order to enable communication in which information is exchanged with friends and acquaintances, and a plurality of messages can be listed as on a bulletin board without being aware of electronic mail functions, an electronic mail transmission/reception system comprises a communication mean to transmit and receive electronic mail; a display mean to display transmitted and received electronic mail on a display screen; a message input mean to input messages to the display screen; a message storage mean to store input messages; and a control mean to cause the above display means to display input messages in a message-board format. The control mean divides the above display screen into a plurality of message display regions, and associates each message with a message display region for display.Type: ApplicationFiled: March 11, 2002Publication date: September 26, 2002Inventors: Hiroyuki Fujimoto, Kazumi Sawai
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Publication number: 20020119846Abstract: A variable-speed V-belt drive includes: a drive pulley; a driven pulley including a fixed sheave with a cylindrical shaft and a movable sheave mounted on the cylindrical shaft so that the movable sheave can rotate and axially move; a V belt extended between the drive and driven pulleys; and a pressure mechanism of applying pressure to the movable sheave of the driven pulley. The pressure mechanism includes a helical cam groove formed in one of the cylindrical shaft and the movable sheave of the driven pulley, and a roller mounted on other of the cylindrical shaft and the movable sheave of the driven pulley so that the roller engages with the cam groove. The cam groove has opposite first and second working surfaces. The second working surface has a retaining surface of retaining the roller thereon when the vehicle travels in the engine-braking mode. The variable-speed V-belt drive can maintain the effect of engine brake at a high level even when traveling down a steep hill.Type: ApplicationFiled: February 21, 2002Publication date: August 29, 2002Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Haruo Kitai, Hiroyuki Fujimoto
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Publication number: 20020112905Abstract: A straddle type four-wheeled all-terrain vehicle includes: an engine mounted on a body frame and disposed between front wheels and rear wheels, having a crankcase; a variable-speed V-belt drive disposed on a side of the crankcase and covered with a V-belt drive cover, the V-belt drive cover having an upper wall provided with a cooling air discharge port opening upward; and a cooling air exhaust duct disposed within a right-and-left width of the body frame. The cooling air exhaust duct communicates with the cooling air discharge port and has an air outlet located in front of a seat So that a cooling air is discharged through the air outlet into a space under the seat. Cooling air is discharged through the air outlet of the cooling air exhaust duct into a space under the seat.Type: ApplicationFiled: February 20, 2002Publication date: August 22, 2002Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Haruo Kitai, Hiroyuki Fujimoto, Masao Mikasa
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Publication number: 20020066612Abstract: A wheel driving system is capable of varying differential limiting torque applied to a differential included in an all-terrain vehicle according to the difference between loads respectively applied to the right and the left wheel of the vehicle, which varies depending on the traveling condition or turning condition of the vehicle. Right and left wheels are connected through a differential gear mechanism (30) having a differential case (46) and held in a reduction gear case (13), an input pinion (22) and a drive shaft to an engine. The differential case (46) and a differential gear shaft (36) connected to the wheel are interlocked by a wet multiple-disk differential limiting mechanism (31) having a friction clutch mechanism immersed in oil. The multiple-disk differential limiting mechanism (31) is operated by a multiple-disk differential limiting mechanism operating mechanism to vary differential limiting torque.Type: ApplicationFiled: December 4, 2001Publication date: June 6, 2002Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Yuichi Kawamoto, Haruo Kitai, Izumi Takagi, Hiroyuki Fujimoto
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Patent number: 6372384Abstract: A rechargeable lithium battery is disclosed having a positive electrode, a negative electrode and a non-aqueous electrolyte. The positive or negative electrode contains, as its active material, an Li—Ti complex oxide having a spinel crystal structure and represented by the compositional formula Li4MxTi5−xO12, wherein M is at least one element selected from V, Nb, Mo and P and x satisfies the relationship 0<x≦0.45.Type: GrantFiled: March 27, 2000Date of Patent: April 16, 2002Assignee: Sanyo Electric Co., Ltd.Inventors: Hiroyuki Fujimoto, Hiroshi Nakajima, Nobumichi Nishida, Hiroshi Watanabe, Shin Fujitani
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Patent number: 6337158Abstract: A lithium secondary battery of this invention includes a positive electrode using, as an active material, a lithium-containing manganese composite oxide with a spinel structure having a composition, during charge and discharge, represented by a formula, LixMn2-y-zNiyMzO4, in which M is at least one element selected from the group consisting of Fe, Co, Ti, V, Mg, Zn, Ga, Nb, Mo and Cu; 0.02≦×≦1.10, whereas x changes in accordance with occlusion and discharge of lithium ions during charge and discharge; 0.25≦y≦0.60; and 0<z≦0.10. Thus, the invention provides a high-voltage lithium secondary battery exhibiting good charge-discharge cycle performance.Type: GrantFiled: December 16, 1999Date of Patent: January 8, 2002Assignee: Sanyo Electric Co., Ltd.Inventors: Hiroshi Nakajima, Hiroyuki Fujimoto, Ryuji Ohshita, Shin Fujitani, Hiroshi Watanabe, Toshiyuki Nohma, Koji Nishio
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Publication number: 20010043789Abstract: A recording and reproducing device capable of storing video-recording and reproducing position with reference to a character string inputted at that point of time and of reproducing the recorded video data starting at a specified position by pointing the related character string. A recording and reproducing device is provide with a recording/reproducing means for recording/reproducing video information, a character inputting means for inputting characters and a recording/reproducing position storing means for relationally storing information indicating the relation a position of recording or reproducing data by the recording/reproducing means at a time point of detection of the character inputting, the string of character inputted by the character inputting means and information indicating area wherein the characters have been inputted, when inputting of a string of character are started by the character inputting means during recording or reproducing video data by the recording/reproducing means.Type: ApplicationFiled: December 13, 2000Publication date: November 22, 2001Inventors: Shunji Nishimura, Hiroyuki Fujimoto, Tadashi Watanabe
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Patent number: 6262924Abstract: A semiconductor memory device is provided with terminals for receiving a chip enable signal and an address signal, an internal circuit, and an internal control signal generating circuit for generating a predetermined internal control signal which makes an output timing of the semiconductor memory device same regardless of a level of the address signal when the chip enable signal undergoes a transition from an inactive level to an active level. The internal circuit is deactivated in response to the inactive level of the chip enable signal and is activated in response to the active level of the chip enable signal.Type: GrantFiled: December 1, 1999Date of Patent: July 17, 2001Assignee: Fujitsu LimitedInventors: Yutaka Fukutani, Tomohiro Nakayama, Seizi Hirayama, Waichiro Fujieda, Arayama Youji, Atsushi Fujii, Yoshitaka Takahashi, Masanori Nagasawa, Masakazu Kimura, Tutomu Taniguti, Hiroyuki Fujimoto
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Patent number: 6156432Abstract: In accordance with the present invention, lithium secondary batteries excellent in charge/discharge characteristics, in particular in charge/discharge capacity and initial efficiency, and high in safety can be provided.Type: GrantFiled: January 25, 1999Date of Patent: December 5, 2000Assignee: Osaka Gas Company LimitedInventors: Akihiro Mabuchi, Hiroyuki Fujimoto, Takahiro Kasuh, Katsuhisa Tokumitsu
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Patent number: 6035074Abstract: An image processing apparatus includes an image acquiring section for acquiring a color image including a human object image, a display section for displaying the acquired color image, a recognition color memory preliminarily storing therein a plurality of face recognition color data for recognition of a face image of the human object image in the color image, a recognition designating section for designating implementation of a face image recognizing operation, a face image recognizing section for comparing color data in the entire color image with the plurality of face recognition color data in response to the designation of the recognition designating section, and recognizing an area having color data conforming to any of the face recognition color data as a face image area, an area designating section for designating the recognized face image area as a face image pickup area, a frame forming section for forming a frame having a size such that the face image pickup area can be embraced in the frame in respType: GrantFiled: February 9, 1998Date of Patent: March 7, 2000Assignee: Sharp Kabushiki KaishaInventors: Hiroyuki Fujimoto, Shuzo Kugimiya
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Patent number: 6026052Abstract: A semiconductor memory device is provided with terminals for receiving a chip enable signal and an address signal, an internal circuit, and an internal control signal generating circuit for generating a predetermined internal control signal which makes an output timing of the semiconductor memory device same regardless of a level of the address signal when the chip enable signal undergoes a transition from an inactive level to an active level. The internal circuit is deactivated in response to the inactive level of the chip enable signal and is activated in response to the active level of the chip enable signal.Type: GrantFiled: June 30, 1998Date of Patent: February 15, 2000Assignee: Fujitsu LimitedInventors: Yutaka Fukutani, Tomohiro Nakayama, Seizi Hirayama, Waichiro Fujieda, Arayama Youji, Atsushi Fujii, Yoshitaka Takahashi, Masanori Nagasawa, Masakazu Kimura, Tutomu Taniguti, Hiroyuki Fujimoto
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Patent number: 5964120Abstract: When used, a hot extrusion forging die for use in titanium alloy according to the present invention extrusion works a heated titanium alloy-made billet in such a manner as to diameter-reduce the billet. The hot extrusion forging die for use in titanium alloy according to the present invention is equipped with a die member for extrusion working. The die member is made of ceramic. The forging die according to the present invention makes it possible to suppress the sticking of the die member onto an extruded work to thereby make it easy to take out the extruded work. Also, the forging die according to the present invention makes it possible to suppress the seizure of the titanium alloy-made billet, with the result that there can be used a lubricant for which the removing operation is not needed to be done.Type: GrantFiled: September 16, 1997Date of Patent: October 12, 1999Assignee: Aisan Kogyo Kabushiki KaishaInventors: Satoru Iwase, Mikiharu Yoshizaka, Shigeki Yamada, Hiroyuki Fujimoto
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Patent number: 5920246Abstract: A composite material having a plurality of sections integrated into a unitary structure and each including a bulk of a superconductive metal oxide of RE--Ba--Cu--O wherein RE represents a rare earth element, the bulk of each of the sections having pinning centers and capable of trapping a magnetic field. A first one of the sections has a superconductive current density different from that of a second one of the sections. The composite material may be produced by assembling preformed respective sections into a unitary structure or by immersing one of the sections in a solution to grow crystal of Y--Ba--Cu--O superconductive on that section, followed by trimming.Type: GrantFiled: March 19, 1997Date of Patent: July 6, 1999Assignees: International Superconductivity Technolgy Center, Railway Technical Research InstituteInventors: Ken Nagashima, Naomichi Sakai, Sang-Im Yoo, Hiroyuki Fujimoto, Masato Murakami
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Patent number: 5831933Abstract: A semiconductor memory device is provided with terminals for receiving a chip enable signal and an address signal, an internal circuit, and an internal control signal generating circuit for generating a predetermined internal control signal which makes an output timing of the semiconductor memory device same regardless of a level of the address signal when the chip enable signal undergoes a transition from an inactive level to an active level. The internal circuit is deactivated in response to the inactive level of the chip enable signal and is activated in response to the active level of the chip enable signal.Type: GrantFiled: April 25, 1997Date of Patent: November 3, 1998Assignee: Fujitsu LimitedInventors: Yutaka Fukutani, Tomohiro Nakayama, Seizi Hirayama, Waichiro Fujieda, Arayama Youji, Atsushi Fujii, Yoshitaka Takahashi, Masanori Nagasawa, Masakazu Kimura, Tutomu Taniguti, Hiroyuki Fujimoto
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Patent number: 5781627Abstract: A semiconductor integrated circuit device with a copy-preventive function comprises a memory for storing data to be used by users, an input unit for performing various logical operations on at least one input information fed externally and accessing the memory, an output unit for performing various logical operations on the data at the time of supplying the data from the memory, a judging unit for comparing at least one of the state of the input information, the logical state of the input unit, the logical state of the output unit, and the state of data provided by the output unit with specific judgment information and indicating the result of comparison, and a control unit that when the result indicated by the judging unit reveals that the at least one of the states is consistent with a specific state, acts at least on the output unit so as to prevent data stored in the memory from being supplied normally.Type: GrantFiled: July 31, 1995Date of Patent: July 14, 1998Assignee: Fujitsu LimitedInventors: Nobuo Ikuta, Kouji Ueno, Kouji Shishido, Yutaka Fukutani, Youji Arayama, Tomohiro Nakayama, Takanori Shiga, Masakazu Kimura, Hiroyuki Fujimoto, Yoshiyuki Fujita
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Patent number: 5780779Abstract: A gate for supplying granule to and removing it from the other apparatus, Which comprises: a drive source (2); a fixed gate (6) having multiple feeder holes arranged such that granule can pass through; a movable gate (7) that is attached such that it can slide across the fixed gate (6) and is equipped with multiple openings (71) that have the same pitch as the feeder holes (61) on the fixed gate, and that allow granule to pass through when said openings (71) are aligned with said feeder holes; and a power transmission mechanism.The granule gate lowers the height of the mounds of granule that accumulate in granule weighing machines (1). It can also entirely open and close feeding holes using a short stroke. The granule weighing machine (1) can be designed thin, so that the maximum quantity of granule to be weighed nearly matches the capacity of the weighing container (3).Type: GrantFiled: September 10, 1996Date of Patent: July 14, 1998Assignee: Kyoji Co., Ltd.Inventors: Masao Kitamura, Hiroyuki Fujimoto
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Patent number: 5661694Abstract: A semiconductor memory device is provided with terminals for receiving a chip enable signal and an address signal, an internal circuit, and an internal control signal generating circuit for generating a predetermined internal control signal which makes an output timing of the semiconductor memory device same regardless of a level of the address signal when the chip enable signal undergoes a transition from an inactive level to an active level. The internal circuit is deactivated in response to the inactive level of the chip enable signal and is activated in response to the active level of the chip enable signal.Type: GrantFiled: May 3, 1994Date of Patent: August 26, 1997Assignee: Fujitsu LimitedInventors: Yutaka Fukutani, Tomohiro Nakayama, Seizi Hirayama, Waichiro Fujieda, Arayama Youji, Atsushi Fujii, Yoshitaka Takahashi, Masanori Nagasawa, Masakazu Kimura, Tutomu Taniguti, Hiroyuki Fujimoto
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Patent number: 5558949Abstract: A battery box has a center frame extending between two rows of batteries housed in the battery box. The center frame has an array of upwardly projecting locking pins. A central holder bar is installed on the locking pins of the center frame. The battery box also has an inner frame including a left straight frame with locking pins and a right straight frame with locking pins. A left holder bar and a right holder bar are installed respectively on the locking pins of the left straight frame and the right straight frame. The central, left, and right holder bars are fastened in position by nuts that are tightened over the locking pins, thereby holding the batteries firmly in the battery box.Type: GrantFiled: December 27, 1994Date of Patent: September 24, 1996Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Syuichiro Iwatsuki, Masami Fukagawa, Kei Oshida, Kazuyuki Mochizuki, Hiroyuki Fujimoto, Masayoshi Okamoto
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Patent number: 5430010Abstract: The present invention relates to a process for preparing an oxide superconductor having a high critical current density, a uniform structure and an excellent mechanical property and thermal stability, which comprises heating raw material powders of a REBaCuO system at 1050.degree. C. or higher, cooling the material for solidification, pulverizing and mixing the solidified material to homogeneously disperse the structure of the solidified material, molding the material, optionally mixed with silver oxide or silver, into a predetermined shape, and reheating the molding to 1050.degree. C. or higher to grow a superconducting phase.Type: GrantFiled: June 8, 1993Date of Patent: July 4, 1995Assignees: International Superconductivity Technology Center, Nippon Steel CorporationInventors: Masato Murakami, Terutsugu Oyama, Hiroyuki Fujimoto, Naoki Koshizuka, Yu Shiohara, Shoji Tanaka