Patents Assigned to ROHM
  • Calculation device, movement detection device, and electronic instrument
    Patent number: 8675008
    Abstract: The calculation device (36) according to the present invention receives a plurality of reflected light intensity information for indicating the intensity of each reflected light which reaches a single light receiver via a reflecting object, the reflected light having been emitted in sequence from a plurality of light emitters (31 through 33) provided in mutually different positions, computes a phase difference of an intensity variation which occurs among the reflected light, and determines a movement of the reflecting object on the basis of the calculation result.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: March 18, 2014
    Assignee: Rohm Co., Ltd.
    Inventors: Takuya Tsuchikawa, Yoshitsugu Uedaira, Yuichiro Nakata, Junji Fujino
  • Method for continuously producing alkylamino(meth)acrylamides
    Patent number: 8674133
    Abstract: The invention relates to a process for continuously preparing N-alkyl(meth)acrylamides by reacting alkyl(meth)acrylates with high-boiling amines. A catalyst activation and specific workup technique achieve product qualities which have not been achieved to date. In addition, very high space-time yields and overall yields can be achieved.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: March 18, 2014
    Assignee: Evonik Röhm GmbH
    Inventors: Bardo Schmitt, Wolfgang Klesse, Martina Ebert, Dirk Broell, Guido Protzmann, Joachim Knebel, Thomas Kehr, Hans-Gerhard Stadler, Gerhard Koelbl, Benedikt Laux
  • MULTIPLE MEMBRANES FOR REMOVING VOC'S FROM LIQUIDS
    Publication number: 20140073718
    Abstract: The present invention relates to a process for removing volatile organic compounds (VOCs) from a liquid stream using multiple membranes that are permeable to the VOCs but impermeable to the liquid.
    Type: Application
    Filed: September 4, 2013
    Publication date: March 13, 2014
    Applicants: ROHM AND HAAS COMPANY, DOW GLOBAL TECHNOLOGIES LLC
    Inventors: James Kent Carpenter, Timothy C. Frank
  • INKJET PRINTER HEAD
    Publication number: 20140071207
    Abstract: An inkjet printer head includes: a semiconductor substrate; a vibration diaphragm provided on the semiconductor substrate and capable of vibrating in an opposing direction in which the vibration diaphragm is opposed to the semiconductor substrate; a piezoelectric element provided on the vibration diaphragm; a pressure chamber provided on a side of the vibration diaphragm adjacent to the semiconductor substrate as facing the vibration diaphragm, the pressure chamber being filled with an ink; and a nozzle extending through the vibration diaphragm and communicating with the pressure chamber for ejecting the ink supplied from the pressure chamber.
    Type: Application
    Filed: November 15, 2013
    Publication date: March 13, 2014
    Applicant: ROHM CO., LTD.
    Inventor: Goro NAKATANI
  • DC/DC CONVERTER, CONTROL CIRCUIT AND CONTROL METHOD THEREOF, POWER SUPPLY, POWER ADAPTER AND ELECTRONIC APPARATUS USING THE SAME
    Publication number: 20140071715
    Abstract: A control circuit of a DC/DC converter includes: a pulse modulator configured to generate a pulse signal; and a driver configured to switch a switching transistor based on the pulse signal. The pulse modulator includes an on signal generator to generate an on signal. The on signal generator includes: a bottom detection comparator configured to compare a voltage of one end of an auxiliary winding with a predetermined threshold voltage and generate a bottom detection signal; a first time-out circuit configured to generate a first time-out signal asserted when the bottom detection signal is not asserted; a second time-out circuit configured to generate a second time-out signal asserted when the bottom detection signal is not asserted; and a logic part configured to generate the on signal based on the bottom detection signal, the first time-out signal and the second time-out signal.
    Type: Application
    Filed: September 11, 2013
    Publication date: March 13, 2014
    Applicant: ROHM CO., LTD.
    Inventors: Yoshinori SATO, Satoru NATE
  • OPTICAL FILTER
    Publication number: 20140071525
    Abstract: Two light receiving elements are formed on a support substrate. A first light receiving element is formed of a p-type layer, an n-type layer, a light absorption semiconductor layer, an anode electrode, a cathode electrode, a protection film, etc. A second light receiving element is formed of a p-type layer, an n-type layer, a transmissive film, an anode electrode, a cathode electrode, a protection film, etc. The light absorption semiconductor layer absorbs light in a wavelength range ? and disposed closer to the light receiving surface than is the pn junction region. The transmissive film has no light absorption range and disposed closer to the light receiving surface than is the pn junction region. The amount of light in the wavelength range ? is measured through computation using a detection signal from the first light receiving element and a detection signal from the second light receiving element.
    Type: Application
    Filed: November 13, 2013
    Publication date: March 13, 2014
    Applicant: ROHM CO., LTD.
    Inventors: Ken NAKAHARA, Shunsuke AKASAKA, Koki SAKAMOTO, Tetsuo FUJII, Shunsuke FURUSE, Soichiro ARIMURA
  • SWITCHING REGULATOR, CONTROL CIRCUIT AND CONTROL METHOD THEREOF, AND ELECTRONIC APPARATUS
    Publication number: 20140070781
    Abstract: A control circuit for controlling a switching transistor and a synchronous rectifying transistor of a switching regulator includes: a bottom detection comparator configured to assert an on signal; an off signal generator configured to assert an off signal; a zero current detector configured to assert a zero current detection signal; and a control logic part configured to receive the on signal, the off signal and the zero current detection signal and generate a control signal such that the control circuit (i) transitions to a first state where, when the on signal is asserted, (ii) transitions to a second state where, when the off signal is asserted, and (iii) transitions to a third state where, when the zero current detection signal is asserted; In the third state, the control logic part reduces an operation current of at least a portion of the control circuit.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 13, 2014
    Applicant: ROHM CO., LTD.
    Inventor: Osamu YANAGIDA
  • SEMICONDUCTOR LIGHT EMITTING DEVICE
    Publication number: 20140070253
    Abstract: The semiconductor device includes a substrate, a semiconductor layer which is formed on the substrate and includes a light emitting layer, and a diffraction/scattering film for diffracting or scattering light generated at the light emitting layer. The diffraction/scattering film is formed between the light emitting layer and the substrate, has a side surface slanted with respect to a film thickness direction thereof, and has a composition gradient in the film thickness direction.
    Type: Application
    Filed: September 4, 2013
    Publication date: March 13, 2014
    Applicant: ROHM CO., LTD.
    Inventors: Tomohito KAWASE, Toshikuni SHINOHARA
  • SWITCHING REGULATOR, CONTROL CIRCUIT AND CONTROL METHOD THEREOF, AND ELECTRONIC APPARATUS
    Publication number: 20140070780
    Abstract: A control circuit for controlling a switching transistor and a synchronous rectifying transistor of a switching regulator includes: a bottom detection comparator configured to assert an on signal; a timer circuit configured to generate an off signal; a zero current detector configured to assert a zero current detection signal; and a driving circuit configured to receive the on signal, the off signal and the zero current detection signal, and (i) turn on the switching transistor and turn off the synchronous rectifying transistor when the on signal is asserted, (ii) turn off the switching transistor and turn on the synchronous rectifying transistor when the off signal is asserted, and (iii) turn off the switching transistor and the synchronous rectifying transistor when the zero current detection signal is asserted.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 13, 2014
    Applicant: ROHM CO., LTD.
    Inventor: Osamu YANAGIDA
  • SEMICONDUCTOR DEVICE WITH FRONT AND BACK SIDE RESIN LAYERS HAVING DIFFERENT THERMAL EXPANSION COEFFICIENT AND ELASTICITY MODULUS
    Publication number: 20140070413
    Abstract: Disclosed are a semiconductor device wherein warping of a semiconductor chip due to a sudden temperature change can be prevented without increasing the thickness, and a semiconductor device assembly. The semiconductor device comprises a semiconductor chip, a front side resin layer formed on the front surface of the semiconductor chip by using a first resin material, and a back side resin layer formed on the back surface of the semiconductor chip by using a second resin material having a higher thermal expansion coefficient than the first resin material. The back side resin layer is formed thinner than the front side resin layer.
    Type: Application
    Filed: November 19, 2013
    Publication date: March 13, 2014
    Applicant: ROHM CO., LTD.
    Inventors: Masaki KASAI, Osamu MIYATA
  • WATER-BORNE ADHESIVES
    Publication number: 20140072820
    Abstract: There is provided a waterborne adhesive composition comprising a vinyl polymer that comprises a) 0 to 0.4% polymerized units of carboxyl functional monomer, by weight based on the weight of said vinyl polymer, and (b) 0.1% to 10% polymerized units of sulfonic acid functional monomer, by weight based on the weight of said vinyl polymer. Also provided is a method of bonding substrates with such a composition and a bonded article made by such a method.
    Type: Application
    Filed: May 14, 2012
    Publication date: March 13, 2014
    Applicant: ROHM AND HAAS COMPANY
    Inventor: Mai Chen
  • Driving circuit for light emitting device with overcurrent protection
    Patent number: 8669934
    Abstract: A driving circuit is provided, which is configured to supply a driving voltage and a driving current to an LED string. A first detection resistor is arranged on a path of the LED string. A voltage source outputs a control voltage having a level that corresponds to the target luminance level of the LED string, and a first threshold voltage that is proportional to the control voltage. A controller generates a gate pulse signal having a duty ratio that is adjusted such that the voltage drop across the first detection resistor matches the control voltage. A first driver drives a switching transistor of a DC/DC converter according to the gate pulse signal. When the voltage drop across the first detection resistor exceeds the first threshold voltage, a first comparator stops the switching operation of the switching transistor.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: March 11, 2014
    Assignee: Rohm Co., Ltd.
    Inventor: Yoshikazu Sasaki
  • Data holding device
    Patent number: 8670263
    Abstract: A data holding device according to the present invention includes a loop structure portion LOOP for holding data using a plurality of logic gates (NAND3 and NAND4) connected in a loop, a nonvolatile storage portion (NVM) for storing in a nonvolatile manner the data held in the loop structure portion (LOOP) by using the hysteresis characteristics of ferroelectric elements, a circuit separating portion (SEP) for electrically separating the loop structure portion (LOOP) and the nonvolatile storage portion (NVM), and a set/reset controller (SRC) for generating a set signal (SNL) and reset signal (RNL) based on data stored in the nonvolatile storage portion (NVM), wherein the plurality of logic gates are each set and reset to an arbitrary output logic level in accordance with the set signal (SNL) and reset signal (RNL).
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: March 11, 2014
    Assignee: Rohm Co., Ltd.
    Inventors: Hiromitsu Kimura, Jun Iida, Koji Nigoriike, Yoshinobu Ichida
  • PROJECTOR
    Publication number: 20140066127
    Abstract: The present disclosure describes a projector which has: an image projection portion; an image provision portion that provides a projection image to the image projection portion; a deviation movement detection portion that detects a deviation movement of the image projection portion; and an image process portion that based on detection by the deviation movement detection portion, shifts the image provided by the image provision portion in a direction where the deviation movement is corrected. According to this, even if an image projection function does not include a deviation correction function, it is possible to perform the deviation correction by means of the image process.
    Type: Application
    Filed: May 11, 2012
    Publication date: March 6, 2014
    Applicant: ROHM CO., LTD.
    Inventors: Takashi Naiki, Masahide Tanaka
  • Composition and method for preparing pattern on a substrate
    Publication number: 20140061155
    Abstract: A copolymer composition and a method of processing a substrate to form line space features thereon are provided.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 6, 2014
    Applicants: DOW GLOBAL TECHNOLOGIES LLC., ROHM AND HAAS ELECTRONIC MATERIALS LLC.
    Inventors: Xinyu Gu, Shih-Wei Chang, Rahul Sharma, Valeriy Ginzburg, Phillip Hustad, Jeffrey Weinhold, Peter Trefonas
  • PHOTORESIST AND COATED SUBSTRATE COMPRISING SAME
    Publication number: 20140065540
    Abstract: A polymer includes the polymerized product of monomers including a nitrogen-containing monomer comprising formula (Ia), formula (Ib), or a combination of formulas (Ia) and (Ib), and an acid-deprotectable monomer having the formula (II): wherein a, L1, LN, Ra, Rb, Rc, and X are defined herein. The polymer is a useful component of a photoresist composition.
    Type: Application
    Filed: November 11, 2013
    Publication date: March 6, 2014
    Applicant: ROHM AND HAAS ELECTRONIC MATERIALS
    Inventors: Deyan Wang, Chunyi Wu, Cong Liu, Gerhard Pohlers, Cheng-bai Xu, George G. Barclay
  • METHODS AND SYSTEMS FOR BANANA YIELD PROTECTION AND ENHANCEMENT
    Publication number: 20140066310
    Abstract: This invention relates to the use of an ethylene synthesis or perception inhibitor for treating stressed or unstressed banana plant or plant parts in the field prior to harvest. Because the pre-mature ripening is triggered by ethylene produced by the plant, such inhibitor can be sprayed or gassed on the fruit while it is in the plantation (on the tree) to protect and avoid the pre-mature ripening of fruit left on for the full growth period of 12-14 weeks (instead of 11 weeks or less). The invention, therefore, enables the banana growers to leave the fruit on the tree for the full growth period (even under certain stress), thereby gaining a yield benefit without the problem of pre-mature ripening in transit.
    Type: Application
    Filed: November 6, 2013
    Publication date: March 6, 2014
    Applicant: ROHM AND HAAS COMPANY
    Inventors: Todd Bryan Edgington, Timothy Maleyt, Alvaro R. Urena-Padilla
  • SIGNAL DETECTION CIRCUIT, IGNITER, AND VEHICLE USING THE SAME
    Publication number: 20140062324
    Abstract: There are provided a signal detection circuit and an igniter capable of enhancing a capability of withstanding breakdown by noise. The signal detection circuit includes an input terminal Sin configured to receive a control signal from an ECU and a bidirectional floating diode provided between the input terminal and a ground. Further, the signal detection circuit includes an attenuation circuit configured to attenuate an output of the bidirectional floating diode, a low-pass filter configured to pass a low-frequency component of the output of the attenuation circuit, and a comparator configured to compare an output of the low-pass filter with a reference voltage.
    Type: Application
    Filed: September 5, 2013
    Publication date: March 6, 2014
    Applicant: Rohm Co., Ltd.
    Inventor: Katsuya Obe
  • SEMICONDUCTOR DEVICE AND SEMICONDUCTOR PACKAGE
    Publication number: 20140061774
    Abstract: A semiconductor device capable of ensuring a withstand voltage of a transistor and reducing a forward voltage of a Schottky barrier diode in a package with the transistor and the Schottky barrier diode formed on chip, and a semiconductor package formed by a resin package covering the semiconductor device are provided. The semiconductor device 1 includes a semiconductor layer 22, a transistor area D formed on the semiconductor layer 22 and constituting the transistor 11, and a diode area C formed on the semiconductor layer 22 and constituting the Schottky barrier diode 10. The semiconductor layer 22 in the diode area C is thinner than the semiconductor layer 22 in the transistor area D.
    Type: Application
    Filed: November 13, 2013
    Publication date: March 6, 2014
    Applicant: ROHM CO., LTD.
    Inventor: Kenichi YOSHIMOCHI
  • METHOD OF PROMOTING SOIL RELEASE FROM FABRICS
    Publication number: 20140066354
    Abstract: A synergistic mixture for promoting soil release from fabric, under laundry washing conditions, which comprises a polyacrylate polymer and at least one water soluble modified cellulose ether. The polyacrylate polymer comprises: (i) 90-100 weight % of polymerized units derived from acrylic acid and (ii) up to 10 weight % of polymerized units derived from one or more C3-C8 monoethylenically unsaturated carboxylic acids, based on the total weight of said polyacrylate polymer. A laundry formulation is also provided which contains the synergistic mixture in an amount of up to 2 weight %, based on the total weight of the laundry formulation. Also provided are methods of promoting soil release from soiled fabric which involve contacting the soiled fabric with an aqueous solution comprising the above-described inventive synergistic mixture or with the above-described laundry formulation.
    Type: Application
    Filed: May 10, 2012
    Publication date: March 6, 2014
    Applicants: ROHM AND HAAS COMPANY, DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Gaelle Della Noce, Teodora Doneva, Anne Oberlin