Patents Assigned to ROHM
  • Patent number: 8894732
    Abstract: The invention provides a plurality of polymeric particles embedded with alkaline-earth metal oxide. The gas-filled polymeric microelements have a shell and a density of 5 g/liter to 200 g/liter. The shell has an outer surface and a diameter of 5 ?m to 200 ?m with the outer surface of the shell of the gas-filled polymeric particles having alkaline-earth metal oxide-containing particles embedded in the polymer. The alkaline-earth metal oxide-containing particles have an average particle size of 0.01 to 3 ?m distributed within each of the polymeric microelements to coat less than 50 percent of the outer surface of the polymeric microelements.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: November 25, 2014
    Assignee: Rohm and Haas Electronic Materials CMP Holdings, Inc.
    Inventors: Andrew R. Wank, Donna M. Alden, David B. James
  • Patent number: 8897046
    Abstract: A DC voltage conversion module includes a substrate, an input terminal, an output terminal, a ground terminal, a DC voltage conversion control element mounted on the substrate, a coil mounted on the substrate and connected to the DC voltage conversion control element and the output terminal, an input-side capacitor mounted on the substrate and connected to the input terminal and the ground terminal, and an output-side capacitor mounted on the substrate and connected to the output terminal and the ground terminal. The input terminal, the output terminal and the ground terminal project in a predetermined projecting direction parallel to each other. The ground terminal is arranged between the input terminal and the output terminal in a direction perpendicular to the projecting direction.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: November 25, 2014
    Assignee: Rohm Co., Ltd.
    Inventors: Gen Muto, Seitaro Mizuhara
  • Patent number: 8896746
    Abstract: A driving circuit drives a voice coil motor having a spring return mechanism. A driving current generating unit supplies, to a coil of the voice coil motor, a driving current that corresponds to an analog control signal. Waveform memory stores digital waveform data which indicates the time waveform of a driving current to be supplied to the voice coil motor. A predetermined frequency component is removed from the frequency components of the waveform data. A control unit reads out the waveform data from the waveform memory at a rate that corresponds to the resonance frequency of the voice coil motor, and outputs the waveform data thus read out as a digital code. A D/A converter converts a digital code into an analog control signal, and outputs the analog control signal to the driving current generating unit.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: November 25, 2014
    Assignee: Rohm Co., Ltd.
    Inventor: Tatsuya Ninomiya
  • Patent number: 8895594
    Abstract: Synergistic microbicidal compositions containing N-methyl-1,2-benzisothiazolin-3-one.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: November 25, 2014
    Assignee: Rohm and Haas Company
    Inventors: John W. Ashmore, Beverly J. El A'mma, Beat Heer, Kiran Pareek
  • Patent number: 8896016
    Abstract: An LED lighting module includes a substrate and an LED chip mounted on the substrate. The substrate includes a base made of metal and an insulating layer. The base includes a principal surface and a raised portion above the principal surface. The insulating layer covers the principal surface of the base and exposes at least a part of the raised portion. The LED chip is supported on the raised portion.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: November 25, 2014
    Assignee: Rohm Co., Ltd.
    Inventor: Hiroyoshi Sakaguchi
  • Publication number: 20140342055
    Abstract: The invention provides a layered structure comprising at least two layers: A) a first layer A, formed from a composition A, comprising a polyurethane; and B) a second layer B, formed from a composition B, comprising at least one functionalized polymer B comprising the following: i) at least one polymerized monomeric unit comprising a functional group selected from the group consisting of the following: a) an acid group, b) an anhydride group, c) a primary or secondary amine group, and d) combinations thereof; or ii) at least one reacted functionalization agent comprising a functional group selected from the group consisting of the following: e) an acid group, f) an anhydride group, g) a primary or secondary amine group, and h) combinations thereof; or iii) combinations thereof; and wherein the functionalized polymer B has a number-average molecular weight greater than 1,000 g/mole, and/or a melt index (I2) less than, or equal to, 2500 g/10 min.
    Type: Application
    Filed: September 19, 2012
    Publication date: November 20, 2014
    Applicants: Dow Global Technologies LLC, Rohm and Haas Chemicals LLC
    Inventors: Sekhar Sundaram, Debkumar Bhattacharjee, Jozef J. Van Dun, Bradley A. Jacobs, Rajen M. Patel, Alexander Williamson
  • Publication number: 20140340783
    Abstract: A back electromotive force monitoring circuit has a speed detection voltage generator which biases a back electromotive force generated by a voice coil motor with a predetermined reference voltage to generate a speed detection voltage, and a calculator which generates a motor control signal in accordance with the speed detection voltage. The calculator includes a subtracter which subtracts the reference voltage from the speed detection voltage prior to generation of the motor control signal.
    Type: Application
    Filed: May 15, 2013
    Publication date: November 20, 2014
    Applicant: ROHM CO., LTD.
    Inventor: Shinichi MIURA
  • Publication number: 20140340887
    Abstract: A compact LED module and a method of manufacturing such an LED module are provided. The LED module includes a first-pole first lead, a first-pole second lead, a first-pole third lead, a second-pole first lead, a second-pole second lead, a second-pole third lead, a first LED chip, a second LED chip, a third LED chip, and a housing. A distal end of the first-pole first lead is offset toward a second-pole side in a first direction with respect to both a distal end of the second-pole second lead and a distal end of the second-pole third lead.
    Type: Application
    Filed: May 12, 2014
    Publication date: November 20, 2014
    Applicant: ROHM CO., LTD.
    Inventor: Masahiko KOBAYAKAWA
  • Publication number: 20140340615
    Abstract: A driving circuit for a light emitting element is disclosed. The driving circuit includes a DC-DC converter configured to generate a drive voltage between a first line and a second line; a current driver, configured to be connected to the light emitting element in series between the first line and the second line, configured to supply a drive current to the light emitting element; a protection resistor configured to be connected to the light emitting element in series between the first line and the current driver; and a controller configured to control the DC-DC converter such that a first detection voltage, which corresponds to a voltage between both ends of the current driver, approaches a predetermined reference voltage and perform a predetermined protection process if the drive voltage between the first line and the second line exceeds a predetermined first threshold voltage.
    Type: Application
    Filed: May 16, 2014
    Publication date: November 20, 2014
    Applicant: ROHM CO., LTD.
    Inventors: Hiroki KIKUCHI, Junichi HAGINO
  • Publication number: 20140340789
    Abstract: An operational amplifier has an input stage which generates a first input current and a second input current in accordance with a first input signal and a second input signal, an offset adjuster which gives offsets to the first input current and the second input current respectively to generate a first output current and a second output current, an output stage which generates an output signal in accordance with the first output current and the second output current, and an offset current generator which generates a first offset current and a second offset current in accordance with an offset adjustment signal. The offset adjuster gives the offsets to the first input current and the second input current respectively by using the first offset current and the second offset current.
    Type: Application
    Filed: May 15, 2013
    Publication date: November 20, 2014
    Applicant: ROHM CO., LTD.
    Inventor: Shinichi MIURA
  • Publication number: 20140340785
    Abstract: An A/D converter has an analog multiplexer stage which selects one of a plurality of first analog signals as a second analog signal, an amplifier stage which amplifies the second analog signal to generate a third analog signal, an A/D conversion stage which converts the third analog signal into a digital signal, and a sequencer which controls those stages. The sequencer performs input switching processing in the analog multiplexer stage on completion of sample hold processing by the A/D conversion stage, when performing a plurality of times of A/D conversion processing sequentially, without waiting for completion of the A/D conversion processing.
    Type: Application
    Filed: May 15, 2013
    Publication date: November 20, 2014
    Applicant: ROHM CO., LTD.
    Inventor: Shinichi MIURA
  • Publication number: 20140339595
    Abstract: An LED module is provided with a lead, an LED chip mounted on the obverse surface of the lead, and a case covering at least a part of the lead. The case has a side wall surrounding the LED chip. The lead includes a thin extension whose bottom surface is spaced apart upward from the reverse surface of the lead in the thickness direction of the lead.
    Type: Application
    Filed: May 12, 2014
    Publication date: November 20, 2014
    Applicant: ROHM CO., LTD.
    Inventor: Masahiko KOBAYAKAWA
  • Patent number: 8890441
    Abstract: A load driving device has a switch N1, a driver that performs on/off control of the switch in accordance with SWON, a comparator that compares Vdet1 with Vth, and based on a result of the comparison, generates IPEAKDET, an ADC that converts Vdet1 into ADCOUT, a DAC that converts IPEAKSET into Vth, and a logic portion that, upon receiving inputs of IPEAKDET and ADCOUT, outputs SWON and IPEAKSET. The logic portion includes a computation circuit that calculates Y1 by using a computation equation expressed by Y1=AVE×?+?×Ton/2 (where Y1: a signal value of IPEAKSET; AVE: an average current set value of an output current; ?: an adjustment coefficient for AVE; Ton: an on period; ?: a change rate of AVCOUT). The computation circuit determines ? in accordance with computation mode setting signals ISO and PFC.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: November 18, 2014
    Assignee: Rohm Co., Ltd.
    Inventor: Akinobu Sawada
  • Patent number: 8890203
    Abstract: A lead 1 includes a die-bonding portion 11 with an opening 11a penetrating in a thickness direction. Another lead 2 is spaced from the lead 1. An LED unit 3 includes an LED chip 30 with a electrode terminal 31 connected to the lead 1 and another electrode terminal 32 connected to the lead 2. The LED unit 3, mounted on a surface of the die-bonding portion 11 on a first side in z direction, overlaps the opening 11a. A wire 52 connects the lead 2 and the electrode terminal 32. A support member 4 supporting the leads 1-2 is held in contact with another surface of the die-bonding portion 11 on a second side in z direction. These arrangements ensure efficient heat dissipation from the LED chip 30 and efficient use of light emitted from the LED chip 3.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: November 18, 2014
    Assignee: Rohm Co., Ltd.
    Inventor: Masahiko Kobayakawa
  • Patent number: 8888984
    Abstract: Tin-silver alloy electroplating baths having certain amine-oxide surfactants and methods of electrodepositing a tin-silver-containing layer using these baths are disclosed. Such electroplating baths are useful to provide tin-silver solder deposits having reduced void formation and improved within-die uniformity.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: November 18, 2014
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventors: Inho Lee, Elissei Iagodkine, Yi Qin, Yu Luo
  • Patent number: 8889344
    Abstract: In one aspect, coating compositions are provided that comprise a component a component that comprises one or more silicon, antimony, aluminum, yttrium, cerium, lanthanum, tin, titanium, zirconium, hafnium, indium or zinc compounds. In another aspect, coating compositions are provided that comprise a plurality of discrete particles. Preferred coating compositions of the invention are useful for antireflective purposes, particularly with an underlaying photoresist coating layer, as well as for a barrier layer in immersion lithography.
    Type: Grant
    Filed: May 4, 2006
    Date of Patent: November 18, 2014
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventors: Gregory P. Prokopowicz, Michael K. Gallagher
  • Patent number: 8889818
    Abstract: The instant invention provides crosslinkable compositions, and method of producing the same. The non-aqueous single phase crosslinkable composition comprises: (a) a polyol having an average of 2 or more hydroxyl functional groups; (b) polyaldehyde, or acetal or hemiacetal thereof; and (c) an acid catalyst having pK of less than 6; and (d) optionally one or more organic solvents.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: November 18, 2014
    Assignees: Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: John N. Argyropoulos, Paul Foley, Eric Greyson, Jeff R. Anderson, Gary E. Spilman, Caroline Slone, Nahrain E. Kamber
  • Patent number: 8889493
    Abstract: A semiconductor device includes a first-conductivity-type semiconductor layer including an active region in which a transistor having impurity regions is formed and a marginal region surrounding the active region, a second-conductivity-type channel layer formed between the active region and the marginal region and forming a front surface of the semiconductor layer, at least one gate trench formed in the active region to extend from the front surface of the semiconductor layer through the channel layer, a gate insulation film formed on an inner surface of the gate trench, a gate electrode formed inside the gate insulation film in the gate trench, and at least one isolation trench arranged between the active region and the marginal region to surround the active region and extending from the front surface of the semiconductor layer through the channel layer, the isolation trench having a depth equal to that of the gate trench.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: November 18, 2014
    Assignee: Rohm Co., Ltd.
    Inventor: Kenichi Yoshimochi
  • Patent number: 8888877
    Abstract: The invention involves a method of preparing an alkaline-earth metal oxide-containing polishing pad useful for polishing at least one of semiconductor, magnetic and optical substrates. The method includes introducing a feed stream of gas-filled polymeric microelements into a gas jet, the polymeric microelements having varied density, varied wall thickness and varied particle size. The method passes the polymeric microelements in the gas jet adjacent a Coanda block, the Coanda block having a curved wall for separating the polymeric microelements with Coanda effect, inertia and gas flow resistance. Then it separates various alkaline earth metal oxide constituents from the curved wall of the Coanda block to clean the polymeric microelements.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: November 18, 2014
    Assignee: Rohm and Haas Electronic Materials CMP Holdings, Inc.
    Inventors: Donna M. Alden, David B. James, Andrew R. Wank, James Murnane
  • Publication number: 20140336410
    Abstract: The present invention provides novel polymerizable monomers having chelating functionality and processes to make them. In particular, the novel monomers are vinyl aminocarboxylates and are prepared by reacting iminodiacetic acid, iminodisuccinic acid, or a salt thereof and a vinyl epoxy benzene monomer.
    Type: Application
    Filed: October 31, 2012
    Publication date: November 13, 2014
    Applicants: ROHM AND HAAS COMPANY, DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Scott Backer, Allen Bulick, Joseph Manna, Cynthia Rand, Jia Xie