Patents Assigned to ROHM
  • ORGANOMETALLIC COMPOUND PURIFICATION
    Publication number: 20140061956
    Abstract: Methods of purifying crude cyclopentadienyl magnesium compounds using a scavenging agent are provided. The purified cyclopentadienyl magnesium compounds have very low levels of metallic impurities.
    Type: Application
    Filed: August 28, 2012
    Publication date: March 6, 2014
    Applicant: Rohm and Haas Electronic Materials LLC
    Inventors: Deodatta Vinayak SHENAI-KHATKHATE, Stephen J. MANZIK
  • TEXTURING OF MONOCRYSTALLINE SEMICONDUCTOR SUBSTRATES TO REDUCE INCIDENT LIGHT REFLECTANCE
    Publication number: 20140065836
    Abstract: Monocrystalline semiconductor substrates are textured with alkaline solutions to form pyramid structures on their surfaces to reduce incident light reflectance and improve light absorption of the wafers. The alkaline baths include hydantoin compounds and derivatives thereof in combination with alkoxylated glycols to inhibit the formation of flat areas between pyramid structures to improve the light absorption.
    Type: Application
    Filed: August 28, 2012
    Publication date: March 6, 2014
    Applicant: Rohm and Haas Electronic Materials LLC
    Inventors: Michael P. TOBEN, Robert K. Barr, Corey O'Connor
  • DC/DC CONVERTER
    Publication number: 20140063865
    Abstract: A pulse modulator generates a pulse modulation signal SPM having a duty ratio which is adjusted according to a feedback voltage Vfb that corresponds to the output voltage VOUT of a DC/DC converter. A second oscillator generates a second cyclic signal which is asserted with each of a predetermined second period. A light load detection circuit generates a light load detection signal which is asserted when the feedback voltage Vfb becomes lower than a first threshold voltage. A driving circuit drives a switching transistor according to the pulse modulation signal SPM, Furthermore, the driving circuit suspends the driving of the switching transistor during a period until the second cyclic signal is next asserted after the light load detection signal is asserted.
    Type: Application
    Filed: October 15, 2013
    Publication date: March 6, 2014
    Applicant: ROHM CO., LTD.
    Inventor: Satoru NATE
  • LEAK CURRENT ABSORPTION CIRCUIT, VOLTAGE GENERATING CIRCUIT, POWER SUPPLY APPARATUS, AND VEHICLE
    Publication number: 20140063668
    Abstract: A leak current absorption circuit for absorbing a leak current from an output transistor includes a switch connected to a grounding node on one end, a constant voltage circuit connected between the other end of the switch and an output node, a switch-operating circuit connected between the output node and the grounding node to operate the switch based on a voltage of the output node. When the voltage of the output node becomes equal to a predetermined threshold voltage or more, the switch-operating circuit turns on the switch to clamp the voltage of the output node by allowing at least a portion of the leak current from the output transistor flow to the grounding node.
    Type: Application
    Filed: August 23, 2013
    Publication date: March 6, 2014
    Applicant: Rohm Co., Ltd.
    Inventor: Takeshi Nagata
  • Semiconductor device with front and back side resin layers having different thermal expansion coefficient and elasticity modulus
    Patent number: 8664779
    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: Grant
    Filed: April 6, 2012
    Date of Patent: March 4, 2014
    Assignee: Rohm Co., Ltd.
    Inventors: Masaki Kasai, Osamu Miyata
  • Process for the separation of organic acids and amino acids from fermentation broths
    Patent number: 8664436
    Abstract: The present invention relates to a solid bed adsorptive separation of organic acid and/or amino acids from fermentation broths containing organic acid and/or amino acid.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: March 4, 2014
    Assignee: Rohm and Haas Company
    Inventor: Areski Rezkallah
  • Process for making uniform oligomeric droplets
    Patent number: 8664332
    Abstract: A process for making substantially uniform oligomeric droplets in an aqueous dispersion comprising preparing an aqueous emulsion of an emulsifying agent, at least one monomer, a chain transfer agent, and an initiator; and mixing the aqueous emulsion with a stabilizer and a plurality of seed particles.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: March 4, 2014
    Assignee: Rohm and Haas Company
    Inventors: Martin Deetz, John J. Maikner, William J. Zabrodski
  • SEMICONDUCTOR DEVICE
    Publication number: 20140054644
    Abstract: A semiconductor device of the present invention includes a semiconductor layer, a plurality of gate trenches formed in the semiconductor layer, a gate electrode filled via a gate insulating film in the plurality of gate trenches, an n+-type emitter region, a p-type base region, and an n?-type drift region disposed, lateral to each gate trench, in order in a depth direction of the gate trench from a front surface side of the semiconductor layer, a p+-type collector region disposed on a back surface side of the semiconductor layer with respect to the n?-type drift region, an emitter trench formed between the plurality of gate trenches adjacent to each other, and a buried electrode filled via an insulating film in the emitter trench, and electrically connected with the n+-type emitter region, and the emitter trench is disposed at an interval of 2 ?m or less via an n?-type drift region with the gate trench.
    Type: Application
    Filed: August 19, 2013
    Publication date: February 27, 2014
    Applicant: ROHM CO., LTD.
    Inventor: Akihiro HIKASA
  • LAMINATE TYPE ENERGY DEVICE AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20140055911
    Abstract: A laminate type energy device includes a plurality of cells, each having a laminated body of at least two layers laminated such that positive and negative electrodes are alternated, with a separator through which an electrolyte and ions are passed, interposed between the positive and negative active material electrodes, and positive and negative lead-out electrodes are exposed. Tab electrodes that allow electricity to flow outside of the laminate type energy device are joined to the lead-out electrodes via connecting portions. The cells are sealed by a sheathing laminate sheet via a sealing material covering at least the connecting portions.
    Type: Application
    Filed: August 20, 2013
    Publication date: February 27, 2014
    Applicant: ROHM CO., LTD.
    Inventor: Hideki SAWADA
  • SEMICONDUCTOR DEVICE
    Publication number: 20140054611
    Abstract: A semiconductor device including a semiconductor layer of a first conductivity type; a plurality of body regions of a second conductivity type; source regions of the first conductivity type, formed on a surface layer part of each body region and spaced away from the edges of each body region; a gate insulating film formed on the semiconductor layer; and gate electrodes formed on the gate insulating film. In the semiconductor layer, trenches extending between two neighboring source regions are formed, the inside surface of the trenches are covered by a gate insulating film, and the gate electrodes comprise surface-facing parts, which are buried in the trenches.
    Type: Application
    Filed: August 27, 2013
    Publication date: February 27, 2014
    Applicant: ROHM CO., LTD.
    Inventors: Yuki NAKANO, Shuhei MITANI, Mineo MIURA
  • HINDERED ALKYLAMINE POLYMER
    Publication number: 20140056840
    Abstract: The present invention relates to a polymer comprising hindered primary amine groups bonded to the backbone of the polymer by way of an amide, ester, or thioester linkage. The polymer is particularly useful as an adjuvant, especially for isothiazolone, and as a dispersant and stain blocker in coatings formulations.
    Type: Application
    Filed: August 23, 2013
    Publication date: February 27, 2014
    Applicants: ROHM AND HAAS COMPANY, DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Sudhakar Balijepalli, Douglas Raymond Hawkins, Kathleen Rising Manna, Lidaris San Miguel Rivera
  • ELECTROLUMINESCENT DEVICE USING ELECTROLUMINESCENT COMPOUND AS LUMINESCENT MATERIAL
    Publication number: 20140054564
    Abstract: Provided is an organic electroluminescent device that exhibits an efficient host-dopant energy transfer mechanism, and thus, expresses a certain high-efficiency electroluminescent performance, based on improved electron density distribution. The organic electroluminescent device also overcomes low initial efficiency and short operation life property, and secures high-performance electroluminescent performance with high efficiency and long life property for each color.
    Type: Application
    Filed: July 29, 2011
    Publication date: February 27, 2014
    Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.
    Inventors: Chi-Sik Kim, Soo-Young Lee, Young-Gil Kim, Hyo-Jung Lee, Su-Hyun Lee, Hyun Kim, Young-Jun Cho, Hyuck-Joo Kwon, Kyung-Joo Lee, Bong-Ok Kim, Sung-Min Kim
  • TOUCH PAD MODULE AND ELECTRONIC DEVICE USING THE SAME
    Publication number: 20140055410
    Abstract: A touch pad module includes: a touch pad, a sensor group, a touch pad controller IC and a touch pad controller IC (Integrated Circuit). The touch pad has a touch surface touchable by a user. The sensor group is mounted on a mount surface of the touch pad. The sensor group includes at least one of an acceleration sensor, a gyro sensor and a geomagnetic sensor. The touch pad controller IC is mounted on the mount surface of the touch pad configured to control the touch pad and includes a detector, a digital processor and a first interface. The detector generates digital data representing an electrical state of the touch pad. The digital processor generates coordinate data representing coordinates touched by the user based on the digital data. The first interface transmits data between the digital processor and the outside of the touch pad controller IC.
    Type: Application
    Filed: August 21, 2013
    Publication date: February 27, 2014
    Applicant: ROHM CO., LTD.
    Inventors: Masao NAKAJIMA, Koki OKADA, Shigehide YANO
  • LEAKAGE CURRENT DETECTION CIRCUIT, SEMICONDUCTOR APPARATUS, LED ILLUMINATION APPARATUS, AND VEHICLE
    Publication number: 20140055031
    Abstract: A leakage current detection circuit detects a switch current flowing in a switch which is targeted for leakage monitoring, and generates a detection signal to prohibit operation of a control target circuit which is targeted for control when the switch current does not reach a predetermined threshold value.
    Type: Application
    Filed: August 20, 2013
    Publication date: February 27, 2014
    Applicants: HONDA MOTOR CO., LTD., Rohm Co., Ltd.
    Inventors: Kouji MIYAMOTO, Masaaki NAKAYAMA, Akira AOKI, Koji OKAMOTO, Masaharu ANDO, Yosuke TSUCHIYA
  • Image processing method and computer program
    Patent number: 8660379
    Abstract: To obtain an output image where contrast relating to the luminance of an input image has been adjusted. In an image processing method for adjusting the luminance value of each pixel contained in an input image, first, a closed region ?(x, y) made up of a plurality of pixels in the input image is demarcated as a target region, and the target region is moved within the input image by predetermined pixel units. At this point, a maximum value and a minimum value of luminance energy defined as a luminance arrangement in the target region are calculated, and difference data of the luminance energy is calculated (step S4). Next, the difference data calculated in step S4 is adapted to the input image to generate an output image (step S6).
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: February 25, 2014
    Assignees: Rohm Co., Ltd., Takumi Vision Co., Ltd.
    Inventors: Shogo Takamura, Hironori Yamauchi
  • Microbicidal composition
    Patent number: 8658679
    Abstract: Synergistic microbicidal compositions containing N-methyl-1,2-benzisothiazolin-3-one.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: February 25, 2014
    Assignee: Rohm and Haas Company
    Inventors: John William Ashmore, Beverly Jean El A'mma, Beat Heer, Kiran Pareek
  • Epoxy resin imbibed polymer particles
    Patent number: 8658742
    Abstract: The present invention relates to a stable aqueous dispersion of thermoplastic polymer particles imbibed with a thermosettable compound. The polymer particles are characterized by having a sufficient concentration of anti-agglomerating functional groups to stabilize the latex against agglomeration. The dispersion is useful as one part of a two-pack formulation.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: February 25, 2014
    Assignee: Rohm and Haas Company
    Inventors: Gary William Dombrowski, Zhenwen Fu, Caroline Slone, Andrew Swartz
  • Semiconductor device
    Patent number: 8659174
    Abstract: There is provided a semiconductor device with which stress can be prevented from locally concentrating on an external connecting terminal on a post and thus damages of the external connecting terminal can be prevented. The semiconductor device includes a semiconductor chip, a sealing resin layer stacked on a surface of the semiconductor chip, and the post which penetrates the sealing resin layer in a stacking direction of the semiconductor chip and the sealing resin layer, protrudes from the sealing resin layer, and has a periphery of the protruding portion opposedly in contact with a surface of the sealing resin layer in the stacking direction.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: February 25, 2014
    Assignee: Rohm Co., Ltd.
    Inventors: Osamu Miyata, Shingo Higuchi
  • INKJET PRINTABLE ETCH RESIST
    Publication number: 20140051248
    Abstract: The methods involve selectively depositing a resist containing a solid hydrogenated rosin resin and a liquid hydrogenated rosin resin ester as a mixture on a semiconductor followed by etching uncoated portions of the semiconductor and simultaneously inhibiting undercutting of the resist. The etched portions may then be metallized to form current tracks.
    Type: Application
    Filed: August 16, 2012
    Publication date: February 20, 2014
    Applicant: Rohm and Haas Electronic Materials LLC
    Inventors: Hua DONG, Robert K. Barr
  • LIGHT EMITTING DEVICE CONTROL CIRCUIT DEVICE AND CONTROL METHOD OF THE CONTROL CIRCUIT DEVICE
    Publication number: 20140049179
    Abstract: The light emitting device control circuit device 100 in accordance with the disclosure includes a power source V1, a transistor TR1, a light emitting unit EU1, switches S1 to S17, constant current sources CC1 to CC17, and a controller 110. A switching voltage Vs1 is supplied from the controller 110 to turn ON or turn OFF the transistor TR intermittently, a pulse voltage is supplied to a pulse voltage supplying line Y1 connected to a drain terminal D of the transistor TR1. The driving signals SP1 to SP17 are sequentially supplied to the switches S1 to S17 to turn ON or turn OFF them (i.e., time division drive). The light emitting devices A1 to A17 are driven sequentially by a pulse current (i.e., time division drive) when a high voltage is supplied to the pulse voltage supplying line Y1 and when the driving signals SP1 to SP17 are turned ON.
    Type: Application
    Filed: October 2, 2013
    Publication date: February 20, 2014
    Applicant: Rohm Co., Ltd.
    Inventors: Hidekazu Kikuchi, Akinobu Sawada