Patents Represented by Attorney, Agent or Law Firm Plotkin & Kahn PLLC
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Patent number: 6679232Abstract: A mixer for a multicylinder gas engine is provided in which a plurality of intake passages extend to a plurality of cylinders. A plurality of gaseous fuel nozzles, each having a nozzle orifice opening in a venturi part of the corresponding intake passage, are provided in a mixer main body. The plurality of gaseous fuel nozzles are connected to a gaseous fuel supply device, wherein a common surge tank housing the plurality of gaseous fuel nozzles and having a fuel intake pipe opening therein is provided on the mixer main body. The fuel intake pipe extends to the gaseous fuel supply device. Intake pressure pulsations that have passed through the gaseous fuel nozzles are attenuated within the surge tank, thereby achieving uniform distribution of a gaseous mixture to each cylinder, minimizes the number of parts, and prevents fluctuations in the fuel concentration of the gaseous mixture.Type: GrantFiled: July 3, 2002Date of Patent: January 20, 2004Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Ryuhei Tamamoto, Shinji Yamanaka, Masanori Fujinuma
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Patent number: 6679066Abstract: A part of a refrigerant in the low-temperature state is circulated by a cryogenic cooling system for superconductive electric machines comprising a refrigerant transfer system and circulation means for internal circulation within the cryogenic area, thereby enabling improvement in the cooling efficiency.Type: GrantFiled: August 16, 2002Date of Patent: January 20, 2004Assignee: Sumitomo Heavy Industries, Ltd.Inventors: Shin Funayama, Kazuhiro Nomi
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Patent number: 6680882Abstract: An annular disc holder is provided for holding a plurality of discs. The disc holder is rotatably mounted on a base and is guided by a guiding device provided between the disc holder and the base so as to be rotated about an axis.Type: GrantFiled: December 8, 1998Date of Patent: January 20, 2004Assignee: Pioneer Electronic CorporationInventors: Yuji Ikedo, Yoshimitsu Fukushima, Hitoshi Nagata, Atsushi Yamane
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Patent number: 6679424Abstract: A memory (1) in a non contact type IC card (100) includes a data protection region (B2) storing data requiring security and an region (B1) storing other data. A main control circuit (2) generates data to be stored and designates a location for data storage in the region (B1) or the data protection region (B2) according to a content of the data. An address non selecting circuit (4) selects whether the generated data is to be written into the location in the data protection region (B2) designated by the main control circuit (2) according to a state of a state setting circuit (3).Type: GrantFiled: November 5, 2002Date of Patent: January 20, 2004Assignee: Rohm Co., Ltd.Inventors: Junichi Hikita, Yoshihiro Ikefuji, Shigemi Chimura, Haruo Taguchi
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Patent number: 6680865Abstract: In a non-volatile memory, the source potential of a selected cell transistor to be programmed is controlled to be changed in accordance with a distance between a program voltage generator connected to a bit line and to the selected cell transistor. When the distance between the selected cell transistor and the program voltage generator is a first distance, the source potential at the selected cell transistor is controlled to be a first potential, and when the distance between them is a second distance longer than the first distance, the source potential at the selected cell transistor is controlled to be a second potential higher than the first potential. As a result, the drain-source voltage at the selected cell transistor to be programmed can be optimized, and optimization of the programming can be implemented.Type: GrantFiled: March 18, 2002Date of Patent: January 20, 2004Assignee: Fujitsu LimitedInventor: Keisuke Watanabe
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Patent number: 6679613Abstract: A surface light source device includes a linear light source, and a light emitted from the linear light source is incident onto one side surface of a light guide plate. The light is then emitted from an upper surface of the light guide plate. A display panel is provided so as to cover an upper surface of the light guide plate. The display panel has two display areas that its translucent rates are different each other. In addition, a light-shielding sheet is provided between the light guide plate and the display area to shield the light emitted from the light guide plate. A light-shielding effect of the light guide plate deteriorates with to a distance from the side surface of the light guide plate, and a luminance irregularity of the light emitted from the light guide plate is absorbed in the light-shielding sheet.Type: GrantFiled: September 26, 2001Date of Patent: January 20, 2004Assignee: Sanyo Electric Co., Ltd.Inventor: Koji Mabuchi
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Patent number: 6680959Abstract: When a laminated semiconductor portion of nitride based compound semiconductor is formed so as to constitute a portion forming a light emitting layer forming portion on a sapphire substrate, the sapphire substrate has an off orientation angle having a tilt relative to an A axis or a M axis in such a way that 0.2°≦&thgr;={&thgr;a2+&thgr;m2}1/2≦0.3°, wherein 0°≦&thgr;a≦0.3°, 0°≦&thgr;m≦0.3°, when taking the angle tilted relative to the A axis as &thgr;a and to the M axis as &thgr;m, and the foregoing nitride based compound semiconductor layers are laminated onto the surface of the off-oriented C plane.Type: GrantFiled: July 18, 2001Date of Patent: January 20, 2004Assignee: Rohm Co., Ltd.Inventors: Tetsuhiro Tanabe, Norikazu Ito
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Patent number: 6678939Abstract: A system for manufacturing a thin-film magnetic head having a means for cutting a wafer into bars, each bar having a plurality of thin-film magnetic head sliders which are sequentially coupled with each other, a means for identifying the bar to be worked to generate an identification signal which indicates identity of said bar, a means for obtaining data of said bar in a unit of bar depending upon said identification signal, and a means for processing at least one working of said bar on the basis of said obtained data of said bar.Type: GrantFiled: February 6, 2001Date of Patent: January 20, 2004Assignee: TDK CorporationInventors: Tomoyuki Yoshida, Noritsugu Kakegawa
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Patent number: 6678576Abstract: A method of loading containers in an optimum way on a load-carrying platform of a vehicle calculates moment weight Wi·i which is multiplication of total weight W1 of containers in each row distant forward by i rows from the platform center by i; calculating moment weight W−i·i which is multiplication of total weight W−i of containers in each row distant rearward by i rows from the platform center by i; calculating the bias load ratio in the traveling direction, which is the ratio of the difference |&Sgr;Wi·i−&Sgr;W−1·i| between the total &Sgr;Wi·i of moment weights of rows located forward of the platform center C and the total &Sgr;W−1·i of moment weights of rows located rearward of the platform center C relative to the sum of same (&Sgr;Wi·i+&Sgr;W−i·i); similarly calculating the bias load ratio in the breadth direction; and loading the containers such that the calculated bias load ratio in the travType: GrantFiled: October 24, 2002Date of Patent: January 13, 2004Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Nobuyoshi Kiyohara, Yoshinori Kuroda, Tatsuo Koyama, Yoshihei Iwai, Makoto Arai, Hidekazu Takahashi
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Patent number: 6677089Abstract: (S12) A reference forward scattering intensity &egr;p is determined as equal to such a slice level that by adjusting the width of a pattern having the minimum width included in a block pattern repeatedly used and collectively exposed, the slice level that is in the range of 30 to 70% of the peak value of a forward scattering intensity distribution of the pattern becomes equal to the design width of the pattern. (S15) in each pattern in the block pattern a pattern width is adjusted such that the width of a forward scattering intensity distribution at &egr;p becomes equal to the design width of the pattern. Further, a collected exposure dose Qcp is determined such that Qcp(&egr;p+&agr;p′&eegr;)=Eth holds, where Eth is a threshold value for pattern developing, q is a backscattering coefficient and &agr;p′ is an effective pattern area density.Type: GrantFiled: April 11, 2002Date of Patent: January 13, 2004Assignee: Fujitsu LimitedInventors: Kozo Ogino, Morimi Osawa
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Patent number: 6677648Abstract: A silicon oxide film (1701) serving as a gate insulating film of a semiconductor device contains Kr. Therefore, the stress in the silicon oxide film (1701) and the stress at the interface between silicon and the silicon oxide film are relaxed, and the silicon oxide film has a high quality even though it was formed at a low temperature. The uniformity of thickness of the silicon oxide film (1701) on the silicon of the side wall of a groove (recess) in the element isolating region is 30% or less. Consequently, the silicon oxide film (1701) has its characteristics and reliability superior to those of a silicon thermal oxide film, and the element isolating region can be made small, thereby realizing a high-performance transistor integrated circuit preferably adaptable to an SOI transistor and a TFT.Type: GrantFiled: March 26, 2001Date of Patent: January 13, 2004Inventor: Tadahiro Ohmi
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Patent number: 6675765Abstract: Rotary type fluid machine includes a casing 7, a rotor 31 and a plurality of vane-piston units U1-U12 which are disposed in a radiate arrangement on the rotor 31. Each of the vane-piston units U1-U12 has a vane 42 sliding in a rotor chamber 14 and a piston 41 placed in abutment against a non-slide side of the vane 42. When it functions as an expanding machine 4, the expansion of a high pressure gas is used to operate the pistons 41 thereby to rotate the rotor 31 via vanes 42 and the expansion of a low pressure gas caused by a pressure reduction in the high pressure gas is used to rotate the rotor 31 via the vanes 41. On the other hand, when it functions as a compressing machine, the rotation of rotor 31 is used to supply a low pressure air to the side of pistons 41 via vanes 42 and further, the pistons 41 are operated by the vanes 42 to convert the low pressure air to the high pressure air.Type: GrantFiled: December 18, 2002Date of Patent: January 13, 2004Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Tsuneo Endoh, Kensuke Honma
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Patent number: 6677970Abstract: An optical print head has a light-emitting diode array having a density of 600 dpi or higher, but nevertheless permits wire bonding to be performed securely and permits reliable bonding. The light-emitting diode array has a thick-film surface protection film, made of a material of the polyimide family, laid on the surfaces of wiring patterns except on light-emitting regions and on electrode wiring pads (individual electrodes).Type: GrantFiled: August 18, 2000Date of Patent: January 13, 2004Assignees: Sanyo Electric Co., Ltd., Tottori Sanyo Electric Co., Ltd.Inventor: Masaharu Inaba
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Patent number: 6676466Abstract: A marine propulsion unit comprises a cylinder (1), a combustion chamber (2) extending from one end of the combustion chamber, a spark plug (8) provided in the combustion chamber (2), and a piston (5) mounted for reciprocating movement within the cylinder (1). A first port (9) is provided in the combustion chamber (2), and this is selectively openable independent of the position of the piston (5) within the cylinder (1). If the propulsion unit should be immersed in water so that the cylinder becomes flooded, the cylinder can be purged by opening the port (9) and moving the piston (5) so as to expel water through the port (9). Once all water has been expelled further movement of the piston causes gases in the cylinder to pass over the spark plug thus removing trapped water from the spark plug without the need to remove the spark plug from the engine to dry it.Type: GrantFiled: February 15, 2002Date of Patent: January 13, 2004Assignee: EP Barrus LimitedInventor: Robert D. Glen
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Patent number: 6677068Abstract: A catalyst for selective oxidation of carbon monoxide present in a hydrogen-containing gas is provided in which the catalyst comprises ruthenium supported on an alumina hydrate. This catalyst has a high selective oxidation activity to carbon monoxide. A carbon monoxide elimination method using this catalyst is also provided. In this method, to a gas containing at least hydrogen and carbon monoxide and being richer in the hydrogen than the carbon monoxide on the basis of volume, oxygen is added in an amount necessary for oxidizing at least part of carbon monoxide present in that gas, and thereafter the gas to which the oxygen has been added is brought into contact with the catalyst described above. Also provided is a solid polymer electrolyte fuel cell system that utilizes this method.Type: GrantFiled: May 2, 2003Date of Patent: January 13, 2004Assignees: N.E. Chemcat Corporation, Honda Giken Kogyo Kabushiki KaishaInventors: Takashi Itoh, Katsumi Kurabayashi, Takahiro Naka, Masako Takayama, Osamu Usaka, Shoji Isobe
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Patent number: 6678315Abstract: A code phase setting method in a PN coder which includes a shift register is provided. According to the method, an initial value is set in the shift register and a direction is selected among two directions in which direction a value in the shift register is shifted. Then, a code phase is set by shifting the initial value in the direction a necessary number of times.Type: GrantFiled: November 23, 1999Date of Patent: January 13, 2004Assignee: Fujitsu LimitedInventors: Mahiro Hikita, Shoji Taniguchi, Koichi Kuroiwa, Masami Kanasugi
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Patent number: 6674098Abstract: A light emitting device includes a silicon substrate (1), a silicon nitride film (2) formed on the surface of the silicon substrate (1), at least an n-type layer (3), (4) and a p-type layer (6), (7) which are formed on the silicon nitride film (2) and also which are made of a ZnO based compound semiconductor, and a semiconductor layer lamination (11) in which layers are laminated to form a light emitting layer. Preferably this silicon nitride film (2) is formed by thermal treatment conducted in an atmosphere containing nitrogen such as an ammonium gas. Also, in another embodiment, a light emitting device is formed by growing a ZnO based compound semiconductor layer on a main face of a sapphire substrate, the main face being perpendicular to the C-face thereof. As a result, it is possible to obtain a device using a ZnO based compound with high properties such as an LED very excellent in crystallinity and having a high light emitting efficiency.Type: GrantFiled: January 25, 2002Date of Patent: January 6, 2004Assignees: National Institute of Advanced Industrial Science and Technology, Rohm Co., Ltd.Inventors: Shigeru Niki, Paul Fons, Kakuya Iwata, Tetsuhiro Tanabe, Hidemi Takasu, Ken Nakahara
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Patent number: 6672352Abstract: In a tube whose internal space is partitioned by a partition wall to formed an air chamber filled with air and a sealant chamber filled with a sealant, the ratio R (R=B/A) of the length B of an outer circumference of the tube accommodated in the tire and expanded by filling of air to the length A of an outer circumference of the tube in an unexpanded is set in a range of 100% to 110%. Thus, the tension of the partition wall at the time when the tube has been expanded is suppressed to a small extent. Even if the partition wall of the tube gets a punctured wound, the partition wall having only a small tension applied thereto has a weak tendency to be intended to be contracted toward the air chamber. Therefore, little, if any, of the air in the air chamber flows into the sealant chamber and thus, a reduction in sealing performance of the sealant due to the mixture with the air is prevented.Type: GrantFiled: December 14, 1999Date of Patent: January 6, 2004Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Toshio Yamagiwa, Hirohisa Takahashi
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Patent number: 6672372Abstract: A hydrogen storage device for avoiding powder dispersion, having a magnetic hydrogen-absorbing material, prevents powder, generated as the hydrogen-absorbing material releases and absorbs hydrogen, from clogging pipelines, a design that can increase the gas flux and work efficiency, thus extending the device lifetime; a magnetic component having a strong magnetic field is further included to keep the magnetic property of the hydrogen-absorbing material, thus the magnetic strength of the hydrogen-absorbing material will not reduce due to the repeated residual stress actions.Type: GrantFiled: November 15, 2002Date of Patent: January 6, 2004Assignee: Industrial Technology Research InstituteInventors: Yu-Chu Li, Shih-Ming Lee, Jenn-Chen Tang
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Patent number: 6672318Abstract: Provided is a wafer rotary holding apparatus by which a reduced pressure is created on an upper surface of a rotary disk by a simple and easy-to-make mechanism with no need of any of a vacuum source apparatus, a compressed air supply apparatus, a compressed gas supply apparatus and other apparatuses in use; a wafer can be held while rotating with no contact to a rear surface thereof; a degree of pressure reduction can be adjusted with ease and even a thin wafer (of 0.1 mm or less in thickness) can be held while rotating with no deformation; and the wafer with a bowing can be held while rotating with no correction of the bowing. A wafer rotary holding apparatus includes: a rotary disk on which a fluid flow path is formed; a through hole formed in a central section of the rotary disk; and a plurality of wafer rests provided on an upper surface of the rotary disk.Type: GrantFiled: August 29, 2000Date of Patent: January 6, 2004Assignee: Mimasu Semiconductor Industry Co., Ltd.Inventors: Masato Tsuchiya, Shunichi Ogasawara, Hideyuki Murooka