Patents by Inventor Kenichi Maeda
Kenichi Maeda 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: 6421772Abstract: A parallel computer of this invention includes a plurality of memory elements and a plurality of processing elements and each of the processing elements is connected to logically adjacent memory elements. For example, the processing elements which corresponds to a logical position (i, j) is connected to the memory elements which correspond to a plurality of logical positions (i, j), (i, j+1), (i+1, j) and (i+1, j+1). It is preferable if each of the memory elements can be accessed from the exterior. According to this invention, efficient memory access can be made and the parallel processing can be performed at high speed without increasing the hardware amount and making the control operation complicated. Further, the operation speed of the image processing can be enhanced by constructing an image memory by use of a plurality of memory elements and causing the processing element to effect the image processing in a distributed and cooperative manner.Type: GrantFiled: June 3, 1999Date of Patent: July 16, 2002Assignee: Kabushiki Kaisha ToshibaInventors: Kenichi Maeda, Nobuyuki Takeda, Yasukazu Okamoto
-
Publication number: 20020083296Abstract: A parallel computer of this invention includes a plurality of memory elements and a plurality of processing elements and each of the processing elements is connected to logically adjacent memory elements. For example, the processing elements which corresponds to a logical position (i, j) is connected to the memory elements which correspond to a plurality of logical positions (i, j), (i, j+1), (i+1, j) and (i+1, j+1). It is preferable if each of the memory elements can be accessed from the exterior. According to this invention, efficient memory access can be made and the parallel processing can be performed at high speed without increasing the hardware amount and making the control operation complicated. Further, the operation speed of the image processing can be enhanced by constructing an image memory by use of a plurality of memory elements and causing the processing element to effect the image processing in a distributed and cooperative manner.Type: ApplicationFiled: June 3, 1999Publication date: June 27, 2002Inventors: KENICHI MAEDA, NOBUYUKI TAKEDA, YASUKAZU OKAMOTO
-
Patent number: 6407718Abstract: A hemispherical dielectric resonator is arranged on a conductive substrate with a flat surface of the resonator in contact with the conductive substrate and fixed by a pair of fixing blocks. The dielectric resonator is fed with a signal feeder at a position at one side of the resonator such that intensity of the electric field is higher at that position. The fixing blocks contact a portion of the dielectric resonator where the intensity of the electric field is of a local minimum.Type: GrantFiled: February 28, 2001Date of Patent: June 18, 2002Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Naoki Adachi, Takashi Fukagawa, Suguru Fujita, Kenichi Maeda, Kazuaki Takahashi, Makoto Hasegawa, Morikazu Sagawa, Mitsuo Makimoto
-
Patent number: 6366055Abstract: A power system where energy generated at a deceleration time of a running vehicle such as an automobile can be accepted as regenerative energy sufficiently and safely is provided. In a power system 10, a non-aqueous solution system secondary battery group 1 where 10 to 11 lithium ion secondary battery cells are connected in series and an aqueous solution system secondary battery group 2 where 18 control valve type lead-acid battery cells are connected in series are connected in parallel. The battery capacity of the non-aqueous solution system secondary battery group 1 is smaller than that of the aqueous solution system secondary battery group 2.Type: GrantFiled: March 26, 2001Date of Patent: April 2, 2002Assignee: Shin-Kobe Electric Machinery Co., Ltd.Inventors: Tetsuro Ookoshi, Satoshi Minoura, Tokiyoshi Hirasawa, Yoshinari Morimoto, Ichiro Shimoura, Yoshihisa Okuda, Kenichi Maeda, Keizo Yamada
-
Publication number: 20010054978Abstract: A hemispherical dielectric resonator is arranged on a metal substrate to make a flat surface of the hemispherical dielectric resonator contact with the metal substrate, and a dielectric wave-guiding channel is connected with a curved side surface of the hemispherical dielectric resonator. Therefore, a dielectric resonance antenna in which the hemispherical dielectric resonator and the dielectric wave-guiding channel are placed on the same metal substrate is obtained. A signal transmitting through the dielectric wave-guiding channel is fed in the hemispherical dielectric resonator, the hemispherical dielectric resonator is resonated, and an electromagnetic wave is radiated. Therefore, the dielectric resonance antenna functions as a wave radiation device.Type: ApplicationFiled: February 28, 2001Publication date: December 27, 2001Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Naoki Adachi, Takashi Fukagawa, Suguru Fujita, Kenichi Maeda, Kazuaki Takahashi, Makoto Hasegawa, Morikazu Sagawa, Mitsuo Makimoto
-
Publication number: 20010043158Abstract: A hemispherical dielectric resonator is arranged on a metal substrate to make a flat surface of the hemispherical dielectric resonator contact with the metal substrate, and a dielectric wave-guiding channel is connected with a curved side surface of the hemispherical dielectric resonator. Therefore, a dielectric resonance antenna in which the hemispherical dielectric resonator and the dielectric wave-guiding channel are placed on the same metal substrate is obtained. A signal transmitting through the dielectric wave-guiding channel is fed in the hemispherical dielectric resonator, the hemispherical dielectric resonator is resonated, and an electromagnetic wave is radiated. Therefore, the dielectric resonance antenna functions as a wave radiation device.Type: ApplicationFiled: February 27, 2001Publication date: November 22, 2001Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Naoki Adachi, Takashi Fukagawa, Suguru Fujita, Kenichi Maeda, Kazuaki Takahashi, Makoto Hasegawa, Morikazu Sagawa, Mitsuo Makimoto
-
Patent number: 6281978Abstract: An image processing portion for conducting the specified processing of an image to be reproduced by an image forming portion based on the processed image data is constructed as a single control portion. Consequently, the development of a variety of digital copying machines requires preparation of specially designated control boards according to levels of the products. This makes machines expensive and requires users to pay a considerable initial cost.Type: GrantFiled: July 28, 1999Date of Patent: August 28, 2001Assignee: Sharp Kabushiki KaishaInventors: Atsushi Narukawa, Fuminori Miyoshi, Kenichi Maeda, Hidenori Ohnishi
-
Patent number: 6198450Abstract: A hemispherical dielectric resonator is arranged on a metal substrate to make a flat surface of the hemispherical dielectric resonator contact with the metal substrate, and a dielectric wave-guiding channel is connected with a curved side surface of the hemispherical dielectric resonator. Therefore, a dielectric resonance antenna in which the hemispherical dielectric resonator and the dielectric wave-guiding channel are placed on the same metal substrate is obtained. A signal transmitting through the dielectric wave-guiding channel is fed in the hemispherical dielectric resonator, the hemispherical dielectric resonator is resonated, and an electromagnetic wave is radiated. Therefore, the dielectric resonance antenna functions as a wave radiation device.Type: GrantFiled: June 1, 2000Date of Patent: March 6, 2001Inventors: Naoki Adachi, Takashi Fukagawa, Suguru Fujita, Kenichi Maeda, Kazuaki Takahashi, Makoto Hasegawa, Morikazu Sagawa, Mitsuo Makimoto
-
Patent number: 6011341Abstract: A DC motor has a projection which projects from the bottom surface of the brush-holder plate. The projection extends to outside in the axial direction of the motor. A terminal conductor is inserted into a perforated hole formed in the projection. One end of the terminal conductor is exposed to the outside of the motor from the tip of the projection, while another end of the terminal conductor is connected electrically to the brush. The projection functions as the built in type electrical connector to the motor, which when coupled to a power supply, powers the DC motor.Type: GrantFiled: March 23, 1998Date of Patent: January 4, 2000Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kazuo Toya, Kenichi Maeda, Shozo Sakon
-
Patent number: 5987223Abstract: An image processing portion for conducting the specified processing of an image to be reproduced by an image forming portion based on the processed image data is constructed as a single control portion. Consequently, the development of a variety of digital copying machines requires preparation of specially designated control boards according to levels of the products. This makes machines expensive and requires users to pay a considerable initial cost.Type: GrantFiled: September 3, 1998Date of Patent: November 16, 1999Assignee: Sharp Kabushiki KaishaInventors: Atsushi Narukawa, Fuminori Miyoshi, Kenichi Maeda, Hidenori Ohnishi
-
Patent number: 5890189Abstract: A memory management and protection system for realizing a high speed execution and a proper and flexible memory access control for multiple programs sharing an identical logical address space. In the system, the memory access is permitted according to a segment identifier identifying a segment in the logical address space, and a memory protection information for a region in each segment including a target right permission to indicate assigned rights to make a memory access from the region to each of the segments, and an execution permission to indicate a type of the memory access permitted by the right permission. Alternatively, a memory access can be permitted by using an access control list to be attached to each address table entry, which stores a plurality of program numbers identifying programs which are permitted to make accesses to the logical address stored in each address table entry, among which one that matches with the current program number is to be searched.Type: GrantFiled: December 3, 1996Date of Patent: March 30, 1999Assignee: Kabushiki Kaisha ToshibaInventors: Hiroshi Nozue, Mitsuo Saito, Kenichi Maeda, Shigehiro Asano, Toshio Okamoto, Shin Sungho, Hideo Segawa
-
Patent number: 5676370Abstract: A paper feeding unit includes: a detecting board formed of a regular-polygonal prism having a multiple number of sensors; a detection block with sides which each have a multiple number of signal generating portions and are able to face the sensors; a holder portion holding the detection block so as to allow the posture of the block to be changed to fix the block at setup positions; and a display window which allows a paper-size indicator displayed on the signal generating portions of the detection block to be seen from the outside. In this configuration, the orientation and position of the detection block are adapted to be changed in accordance with the size of paper held in the paper feed cassette.Type: GrantFiled: February 16, 1996Date of Patent: October 14, 1997Assignee: Sharp Kabushiki KaishaInventors: Akihiko Taniguchi, Hideo Taniguchi, Kenichi Maeda
-
Patent number: 5627987Abstract: A memory management and protection system for realizing a high speed execution and a proper and flexible memory access control for multiple programs sharing an identical logical address space. In the system, the memory access is permitted according to a segment identifier identifying a segment in the logical address space, and a memory protection information for a region in each segment including a target right permission to indicate assigned rights to make a memory access from the region to each of the segments, and an execution permission to indicate a type of the memory access permitted by the right permission. Alternatively, a memory access can be permitted by using an access control list to be attached to each address table entry, which stores a plurality of program numbers identifying programs which are permitted to make accesses to the logical address stored in each address table entry, among which one that matches with the current program number is to be searched.Type: GrantFiled: February 23, 1993Date of Patent: May 6, 1997Assignee: Kabushiki Kaisha ToshibaInventors: Hiroshi Nozue, Mitsuo Saito, Kenichi Maeda, Shigehiro Asano, Toshio Okamoto, Shin Sungho, Hideo Segawa
-
Patent number: 5598821Abstract: A high probability of detecting an erroneous misfire occurs when combustion becomes unstable during jolt control. Therefore, during jolt control the reliability of the misfire detection system is degraded. As a result, the misfire detection system is inactivated during jolt control by discontinuing the misfire detection, or by deliberately deeming no misfire has occurred if jolt control has occurred. Alternatively, the misfire detection sensitivity is masked during jolt control.Type: GrantFiled: May 18, 1995Date of Patent: February 4, 1997Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Shukoh Terata, Kenichi Maeda, Shigetaka Kuroda, Yuichi Shimasaki, Masaki Kanehiro, Takuji Ishioka, Takashi Hisaki, Jiro Takagi, Eitetsu Akiyama, Shigeki Baba, Shigeru Maruyama
-
Patent number: 5450834Abstract: An evaporative fuel-processing system for an internal combustion engine includes an evaporative emission control system having a fuel tank, a canister, a passage extending from the canister to an intake passage of the engine, and a purge control valve arranged across the passage, and a pressurization device for pressurizing the interior of the evaporative emission control system. An ECU actuates the pressurization device to bring the evaporative emission control system into a positively pressurized state, after the purge control valve and an open-to-atmosphere control valve arranged across a passage connected to the canister are closed, and detects an amount of evaporative fuel generated in the fuel tank. The ECU determines whether or not a leakage occurs from the evaporative emission control system, based on a rate of variation in pressure within the evaporative emission control system, and a reference value which is determined based on the amount of evaporative fuel detected.Type: GrantFiled: March 16, 1994Date of Patent: September 19, 1995Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Masayoshi Yamanaka, Kazutomo Sawamura, Hiroshi Maruyama, Kenichi Maeda
-
Patent number: 5418461Abstract: A device according to an aspect of the invention detects abnormality of spark plugs of an internal combustion engine. A value related to electric resistance across a gap between electrodes of each spark plug is measured. Next, it is determined whether or not the measured value, related to the electric resistance, assumes a value indicating that the electric resistance is below a predetermined value, when the engine is determined to be in a non-combustive state. The spark plug is determined to be abnormal when it is determined that the measured value, related to the electric resistance, assumes the value indicating that the electric resistance is below the predetermined value. A misfire-detecting system according to another aspect of the invention incorporates the above device.Type: GrantFiled: April 26, 1993Date of Patent: May 23, 1995Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Kenichi Maeda, Yuichi Shimasaki, Eitetsu Akiyama, Takashi Hisaki, Shigeru Maruyama, Masaki Kanehiro, Takuji Ishioka, Kazutomo Sawamura
-
Patent number: 5415035Abstract: A combustion state-detecting system, for internal combustion engines, has a crank angle sensor. The crank angle sensor generates a crank angle signal with a predetermined period shorter than a firing period of the engine whenever the crankshaft rotates through a predetermined angle. A value of the rotational speed of the engine is detected whenever the crank angle signal is generated. A first average value of the detected engine rotational speed is calculated over a period of one rotation of the crankshaft, followed by calculating a second average value of the first average value over every firing period, to thereby calculate a rate of variation in the second average value over every firing period. The rate of variation is compared with a predetermined value, to determine whether or not the engine is in a degraded state of combustion.Type: GrantFiled: September 10, 1993Date of Patent: May 16, 1995Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Yuichi Shimasaki, Kazutomo Sawamura, Kenichi Maeda, Shigetaka Kuroda
-
Patent number: 5396873Abstract: An evaporative fuel-processing system includes a first control valve arranged in a charging passage connecting between a fuel tank and a canister for adsorbing evaporative fuel generated from the fuel tank, a second control valve arranged in a purging passage connecting between the canister and an intake passage of the engine, a third control valve arranged in an air inlet port of the canister, and a system internal pressure sensor for detecting pressure within the system. The system is checked for a leak by monitoring a value of the pressure detected by the sensor after the system is negatively pressurized by closing the third control valve and opening the second control valve. The sensor is provided at a location upstream of the first control valve, and the first control valve is closed to detect a value of the pressure or a change thereof. Abnormality determination is carried out based on the detected value of the pressure.Type: GrantFiled: December 17, 1993Date of Patent: March 14, 1995Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Masayoshi Yamanaka, Hiroshi Maruyama, Masataka Chikamatsu, Yasunari Seki, Kenichi Maeda, Kazutomo Sawamura
-
Patent number: 5390537Abstract: A combustion state-detecting system for internal combustion engines has a crank angle sensor which generates a crank angle signal with a predetermined period shorter than a firing period of the spark plug whenever the crankshaft rotates through a predetermined angle. A value of the rotational speed of the engine is detected whenever the crank angle signal is generated. A rate of variation in the detected value of the rotational speed of the engine is calculated over the firing period of the spark plug, and an average value thereof is then calculated. The calculated average value of the variation rate is compared with the calculated variation rate, and a cumulative value of a difference between the calculated variation rate average value and the calculated variation rate is calculated when the calculated variation rate is on the larger deceleration side of the engine rotational speed with respect to the calculated variation rate average value.Type: GrantFiled: November 10, 1993Date of Patent: February 21, 1995Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Shigetaka Kuroda, Kenichi Maeda, Kazutomo Sawamura, Hiroshi Maruyama
-
Patent number: 5388560Abstract: A misfire-detecting system for an internal combustion engine compares detected sparking voltage with a first predetermined comparative level and a second predetermined comparative level lower than the first predetermined comparative level. Whether a misfire has occurred in the engine is determined based upon a logical relationship between results of the comparisons. As a result, a misfire can be detected accurately even when dielectric breakdown of the mixture occurs while a misfire has occurred.Type: GrantFiled: April 26, 1993Date of Patent: February 14, 1995Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Takashi Hisaki, Yuichi Shimasaki, Shigeki Baba, Masaki Kanehiro, Takuji Ishioka, Shigeru Maruyama, Kazuhito Kakimoto, Masataka Chikamatsu, Shukoh Terata, Kenichi Maeda