Patents Represented by Attorney Steven M. Rabin
-
Patent number: 5562359Abstract: A handle stem fixing device in a bicycle includes a stem-binding cylinder 30 fitted on an upper portion of a fork stem 10 and a screw cap 4 engaged with an upper portion of the fork stem 10, wherein a thread is formed on an outer surface of the fork stem 10, and the screw cap 4 has a bore with internal thread. The cap 4 can be engaged with the thread of the fork stem when the upper portion of the fork stem 10 projects out from an upper end of the stem-binding cylinder 30. While the screw cap 4 is tightened, the 10 stem-binding cylinder 30 is depressed in an axial direction thereof by the cap 4 and is fixed on the upper portion of the fork stem 10.Type: GrantFiled: September 23, 1994Date of Patent: October 8, 1996Assignee: Marui Co., Ltd.Inventor: Kohei Marui
-
Patent number: 5563081Abstract: A method for making a nonvolatile memory device having a field effect transistor for storing information, and a Schottky diode in series with the field effect transistor. The field effect transistor includes source and drain regions in a semiconductor substrate, with a channel region interposed between them and a gate electrode above the channel region. A ferroelectric gate film is sandwiched between the channel region and the gate electrode. In the method, a conductive barrier meterial is deposited in contact with the source region of the field effect transistor to make the Schottky diode. In reading information from the memory device, voltage is applied to a serial circuit consisting of the field effect transistor and the Schottky diode to turn the Schottky diode on.Type: GrantFiled: November 21, 1995Date of Patent: October 8, 1996Assignee: Rohm Co., Inc.Inventor: Takanori Ozawa
-
Patent number: 5553511Abstract: In a handle stem fixing device in a bicycle wherein a fork stem 10 is rotatably inserted into a head pipe 20 of a frame 2, the upper portion of the fork stem 10 projects out from the upper end of the head pipe 20 and a stem-binding cylinder 30 is fixed on the upper portion of the fork stem 10 so as not to rotate. Many small protrusions are formed on the outer surface of the fork stem 10 where is pressed by the stem-binding cylinder 30. The coefficient of friction between contact surfaces of the fork stem 10 and the stem-binding cylinder 30 increases because of the protrusions. The coupling power acting between the fork stem 10 and the stem-binding cylinder 30 can thus be improved.Type: GrantFiled: September 23, 1994Date of Patent: September 10, 1996Assignee: Marui Co., Ltd.Inventor: Kohei Marui
-
Patent number: 5550808Abstract: A window-based ATM cell stream regulator composed of a means for detecting to which connection an arriving cell belongs among a plurality of connections, a detector for detecting when the cell arrived within the same connection based on its arrival time, a window start time stored in a memory and a predetermined window section length stored therein and a memory for storing the updated number of counted cells and the window start time.Type: GrantFiled: March 29, 1995Date of Patent: August 27, 1996Assignee: Oki Electric Industry Co., Ltd.Inventor: Kiyoshi Shimokoshi
-
Patent number: 5544096Abstract: A semiconductor memory, device of the invention includes memory cells each having a transistor and a capacitor, bit lines electrically connected to the memory cells, data Dines, transfer circuits each electrically connecting the bit lines and the data lines in response to column selection signals, and conductive lines each electrically connected between a transistor and a capacitor of memory cell selected ones of the and having a predetermined potential. Owing to this arrangement, the semiconductor memory device can be realized wherein volatile memory cells and non-volatile memory cells are provided within a single memory cell array. Further, the semiconductor memory device of the invention is of a semiconductor memory device having high flexibility, wherein the ratio between the volatile memory cells and the non-volatile memory cells can be easily decided according to a user's demand.Type: GrantFiled: June 6, 1995Date of Patent: August 6, 1996Assignee: Oki Electric Industry Co., Ltd.Inventor: Atsushi Takasugi
-
Patent number: 5537850Abstract: A process of making wheels in which a pair of rams press an initial mass of material for shaping a central disc part. A portion of the material is extruded out from between the interface of the rams. A roller unit having several rollers simultaneously forms rim parts by pressing the extruded material into desired shapes as it passes beyond the periphery of the rams.Type: GrantFiled: June 6, 1995Date of Patent: July 23, 1996Assignee: Rays Engineering Co., Ltd.Inventor: Shujiro Inatani
-
Patent number: 5533843Abstract: An electric hand drill set includes a case constituted by a casing closeable by a cover to define therein a first interior space and a second interior space. A hand drill is received and removably held within the first interior space. A power converting and supplying device, such as an adaptor, is received and removably held within the second interior space. The power converting and supplying device has an extension cord adapted to connect to an external power source. The hand drill has and is powered by a rechargeable battery set which is electrically connectable to and thus chargeable by the power converting and supplying device. The charging of the battery set is indicated by a charging indicator. The cover has a window formed thereon, opposing the charging indicator to allow user to monitor the charging of the battery set.Type: GrantFiled: September 19, 1994Date of Patent: July 9, 1996Inventor: Lee H.-C. Chung
-
Patent number: 5533066Abstract: A sampling phase calculating part calculates a complex cross-correlation function; of a part corresponding to a training sequence of an equalizer of each sequence with respect to individual sample value sequences i of a reception signal y(t) which are sampled in a plurality of different sampling phases and selects a sampling phase where the absolute value of the complex cross-correlation functions is maximized, then selects a sampling phase .tau.s where the bit error rate is minimized according to a calculation based on the above selected sampling phase. A sampling processing part samples the reception signals y(t) in the sampling phase .tau.s for use in obtaining estimated values E of a transmission symbol sequence in a Viterbi algorithm processing part (130) and a transmission line estimating part (140), thereby to obtain a transmission symbol sequence with an improved bit error rate and higher accuracy.Type: GrantFiled: February 2, 1994Date of Patent: July 2, 1996Assignee: Oki Electric Industry Co., Ltd.Inventors: Norio Yamaguchi, Haruhiro Shiino
-
Patent number: 5531088Abstract: A rotary forging apparatus includes a first rotary ram (3a), a cylindrical second rotary ram (3b), a third rotary ram (3c) and a shaping roller device. The first ram (3a) and the cylindrical second ram (3b) face each other and rotate around the same axis. The third ram (3c) rotates around a slanting axis in the cylindrical second ram (3b). The third ram (3c) presses a workpiece against the first ram (3a) and makes a disc part of a product. The shaping roller, the second ram (3b) and a side of the first ram make the rim part. The outer surface of the second ram (3b) can keep tight contact with the workpiece during the forging because of the rotational symmetry of the second ram (3b). The overall contact stabilizes the position of the workpiece and reduces the size error of the product.Type: GrantFiled: November 9, 1994Date of Patent: July 2, 1996Assignee: Rays Engineering Co., Ltd.Inventor: Shujiro Inatani
-
Patent number: 5533012Abstract: A code-division multiple-access system has a downstream channel for transmission from a base station to a number of mobile stations, and an upstream channel for transmission from the mobile stations to the base station. On the downstream channel, each mobile station's spreading code is divided into two parts, which modulate data transmitted on in-phase and quadrature carriers, respectively, thereby enabling the length of the spreading code to be doubled without increasing the chip rate. On the upstream channel, as soon as a symbol is received from one mobile station, it is despread to estimate its value, then respread and canceled as interference with respect to the other mobile stations, these processes being iterated in a cyclic order of the mobile stations.Type: GrantFiled: March 9, 1995Date of Patent: July 2, 1996Assignee: OKI Electric Industry Co., Ltd.Inventors: Atsushi Fukasawa, Kenji Horiguchi, Takuro Sato, Hiroki Sugimoto, Yumi Takizawa
-
Patent number: 5531450Abstract: A dart board mounting structure includes one or two symmetrical dart holders which may be freely connected to an upper side or lower side of a circumferential wall of the dart board. Notches are formed in the wall of the dart board for holding the dart holders. Each dart holder is a stepped board consisting of a higher step and a lower step. The higher step has a curved surface with one or two T-shaped legs. The lower step is connected to an elongated plate via a tear-off line. The elongated plate has a plurality of jaws, and rings are disposed between adjacent jaws. A plurality of pins corresponding to the rings are provided on the lower step abutting the higher step. A stop is provided at either sides of the plurality of pins for retaining the elongated plate after it is torn off the lower step and fitted on the pins.Type: GrantFiled: May 16, 1995Date of Patent: July 2, 1996Inventors: Kuo-Hui Lu, Chin-Huang Peng
-
Patent number: 5529183Abstract: A floppy diskette holder for storage of three and one-half inch hard case floppy diskettes is disclosed. The floppy diskettes are held in FD receptacles in an array on each side of a rectangular frame molded of elastic resin. A pair of resilient tabs extend from both ends of an open edge of one side wall of each FD receptacle so as to press both outside portions of the slide cover of the floppy diskette. A pair of hook holders project at both ends of an upper side of the rectangular frame for holding hooks. The hooks are used to engage with hanger rails in desk's file drawer. An index tab is provided between the hook holders for convenient reference.Type: GrantFiled: May 2, 1994Date of Patent: June 25, 1996Assignee: Sekisei Co., Ltd.Inventor: Masao Nishikawa
-
Patent number: 5526302Abstract: A semiconductor memory device of the invention includes memory cells each having of a transistor and a capacitor, bit lines electrically connected to the memory cells, data lines, transfer circuits each electrically connecting the bit lines and the data lines in response to column selection signals, and conductive lines each electrically connected between a transistor and a capacitor of selected ones of the memory cells and having a predetermined potential. Owing to this arrangement, the semiconductor memory device can be realized wherein volatile memory cells and non-volatile memory cells are provided within a single memory cell array. Further, the semiconductor memory device of the invention is of a semiconductor memory device having high flexibility, wherein the ratio between the volatile memory cells and the non-volatile memory cells can be easily decided according to a user's demand.Type: GrantFiled: May 9, 1994Date of Patent: June 11, 1996Assignee: OKI Electric Industry Co., Ltd.Inventor: Atsushi Takasugi
-
Patent number: 5525942Abstract: An LC-type dielectric filter includes a plurality of substrate layers which are arranged in a stack and laminated to form a multi-layer substrate. Strip line resonators are provided on some of the substrate layers. The filter has a plurality of terminals, which are connected to resonators. The terminals are also capacitively or inductively coupled to each other. At least one grounding layer is included in the stack for electrically isolating the resonators. Coupling between the resonators can be obtained by forming a plurality of resonators close to one another on the same substrate layer. Further, a duplexer can be made from filters of this type. The duplexer may include a matching circuit and a power amplifier for RF transmission.Type: GrantFiled: July 22, 1994Date of Patent: June 11, 1996Assignee: OKI Electric Industry Co., Ltd.Inventors: Hiroyuki Horii, Kohichiro Shimizu, Toshikazu Yasuoka, Masao Iwata, Katsuhiko Gunji, Tomokazu Komazaki
-
Patent number: 5518250Abstract: A dart board assembly including a cover frame, a back frame fastened to the cover frame, a plurality of target plates fitted into respective radial scoring open areas in the cover frame, a membrane circuit mounted between the target plates and the back frame, a printed circuit board insulated from the membrane circuit by a slotted insulative partition board, wherein each target plate is fixedly attached with a respective rigid insulative plate and supported on a respective cushion for quick return after a striking, the rigid insulative plate having a plurality of contact pins inserted into respective through holes and suspended from the membrane circuit by a gap for triggering the membrane circuit upon striking of the dart.Type: GrantFiled: May 16, 1995Date of Patent: May 21, 1996Inventors: Kuo-Hui Lu, Chin-Huang Peng
-
Patent number: 5517292Abstract: A fusing apparatus 14 for fusing toner onto paper includes a heater roller 2 and a separating unit 15 with a separation claw 16. The separation claw 16 is provided with a paper guide member 17 having a curvature in a direction opposite to the curvature from a point a to a point c on the heater roller 2. After fusing, the front end 10a of the separated paper 10 is guided by the paper guide member 17. The paper guide member 17 reforms a curl imparted by the heating roller 2 curl into the original state, even if the paper 10 sticks to the heater roller 2 until the point c.Type: GrantFiled: May 27, 1994Date of Patent: May 14, 1996Assignee: Oki Electric Industry Co., Ltd.Inventors: Hiroyuki Yajima, Takashi Itaya
-
Patent number: 5511030Abstract: A semiconductor memory device according to the present invention is constructed in such a manner that two first and second memory circuits are respectively electrically connected to one sense amplifier provided between the memory circuits through changeover elements and equalize elements are electrically connected to their corresponding bit line pairs included in the memory circuits. Owing to this construction, an operation for resetting the bit line pair in the first memory circuit and the sense amplifier after completion of access to the first memory circuit and an operation for reading data into the bit line pair in the second memory circuit can be performed so as to overlap each other in time. It is therefore possible to obtain quick-access to the second memory circuit.Type: GrantFiled: August 24, 1994Date of Patent: April 23, 1996Assignee: OKI Electric Industry Co., Ltd.Inventors: Yasuhiro Tanaka, Tetsuya Tanabe, Satoru Tanoi
-
Patent number: 5502677Abstract: There is provided a switch 140 between an address line 121 and external output terminals A0.about.An, controlled by outputs of a counter circuit 117 and a test mode control circuit 119. The switch 140 transfers a variation of an address signal to external output terminals A0.about.An, without connecting the address line 121 with the external address terminals A0.about.An, directly.Type: GrantFiled: June 3, 1994Date of Patent: March 26, 1996Assignee: Oki Electric Industry Co., Ltd.Inventor: Shinya Takahashi
-
Patent number: 5500614Abstract: A semiconductor memory device which is capable of reducing a delay in the conversion of an input chip enable signal having a TTL level, providing a quick chip enable access and avoiding an increase in current consumption despite the quick chip enable access. The semiconductor memory device in one embodiment includes an input buffer outputting a signal having a CMOS level in response to a chip enable signal having a TTL level, and having a plurality of transistors whose gate lengths are set to first dimensions, and a second input buffer activated in response to both another input signal having a TTL level and the signal having the CMOS level, and having a plurality of transistors whose gate lengths are set to second dimensions greater than the first dimensions.Type: GrantFiled: September 16, 1994Date of Patent: March 19, 1996Assignee: OKI Electric Industry Co., Ltd.Inventor: Noboru Egawa
-
Patent number: 5498932Abstract: A drive voltage generating circuit outputs drive signals having voltage levels which is controlled by a second control signal is disclosed. A drive voltage generating circuit according to the present invention comprises drive output terminals for outputting drive signals having voltage levels, a bias circuit having a first voltage terminal to be applied to a first voltage and a second voltage terminal to be applied to a second voltage. The bias circuit produces voltage signals having the drive voltage levels. A drive voltage generating circuit according to the present invention further comprises a switching circuit having input terminals coupled to the bias circuit, output terminals coupled to the drive output terminals and a control terminal receiving a first control signal, a bias potential control circuit coupled between the second voltage terminal and a third voltage terminal to be applied to a third voltage.Type: GrantFiled: August 29, 1994Date of Patent: March 12, 1996Assignee: OKI Electric Industry Co., Ltd.Inventors: Yasuhiro Shin, Takashi Hamamoto