Patents by Inventor Masahiko Shimizu
Masahiko Shimizu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 10183905Abstract: A method produces acetic acid and includes a reaction step, a first purification step, a second purification step, and a third purification step. In the reaction step, a material mixture including methanol, carbon monoxide, a catalyst, and an iodide is subjected to a methanol carbonylation reaction in a reactor (1) to form acetic acid. In the first purification step, a crude acetic acid stream including acetic acid formed in the reaction step is subjected to distillation in a distillation column (3) to give a first acetic acid stream enriched with acetic acid. In the second purification step, the first acetic acid stream is subjected to distillation in a distillation column (5) to give a second acetic acid stream further enriched with acetic acid. In the third purification step, an acetic acid stream is subjected to purification in an additional purification unit (e.g.Type: GrantFiled: September 20, 2016Date of Patent: January 22, 2019Assignee: DAICEL CORPORATIONInventors: Masahiko Shimizu, Nobuyuki Hirabayashi, Yoshihisa Mizutani
-
Publication number: 20190013343Abstract: A solid-state imaging apparatus includes: a solid-state imaging device photoelectrically converting light taken by a lens; and a light shielding member shielding part of light incident on the solid-state imaging device from the lens, wherein an angle made between an edge surface of the light shielding member and an optical axis direction of the lens is larger than an incident angle of light to be incident on an edge portion of the light shielding member.Type: ApplicationFiled: August 29, 2018Publication date: January 10, 2019Applicant: Sony CorporationInventors: Toshiaki Iwafuchi, Masahiko Shimizu, Hirotaka Kobayashi
-
Publication number: 20180366506Abstract: A solid-state imaging apparatus includes: a solid-state imaging device photoelectrically converting light taken by a lens; and a light shielding member shielding part of light incident on the solid-state imaging device from the lens, wherein an angle made between an edge surface of the light shielding member and an optical axis direction of the lens is larger than an incident angle of light to be incident on an edge portion of the light shielding member.Type: ApplicationFiled: August 28, 2018Publication date: December 20, 2018Applicant: Sony CorporationInventors: Toshiaki Iwafuchi, Masahiko Shimizu, Hirotaka Kobayashi
-
Publication number: 20180358694Abstract: A wireless communication device includes: a plurality of subarrays each including a plurality of antenna elements and an analog circuit configured to perform a given analog process on signals to be transmitted from or received by the antenna elements; and a processor that is connected to the subarrays. The processor executes a process including: estimating direction of arrivals from which signals transmitted from a plurality of terminals come; calculating maps based on trigonometric functions of angles representing the estimated direction of arrivals; generating a plurality of groups to which the terminals belong based on the calculated maps; assigning, to each of the groups, a combination of subarrays to generate directional beams that do not interfere with each other; and determining weighting coefficients to generate directional beams in directions of the terminals which belongs to each group by using the combination of subarrays assigned.Type: ApplicationFiled: June 4, 2018Publication date: December 13, 2018Applicant: FUJITSU LIMITEDInventor: Masahiko Shimizu
-
Publication number: 20180354884Abstract: A process for producing acetic acid comprises a process comprising: (1) carbonylating methanol; (2) separating the reaction mixture into a volatile phase and a less-volatile phase; (3) distilling the volatile phase to form a first overhead rich in a lower boiling component, and an acetic acid stream rich in acetic acid; and at least one step group selected from the group consisting of the following sections (4), (9), and (15): (4) a section for separating impurities from the acetic acid stream to give purified acetic acid, (9) a section for separating the first overhead into a stream rich in acetaldehyde and a stream rich in methyl iodide, and (15) a section for absorption-treating an off-gas from the process with an absorption solvent and forming a carbon monoxide-rich stream and an acetic acid-rich stream.Type: ApplicationFiled: November 17, 2017Publication date: December 13, 2018Applicant: Daicel CorporationInventors: Masahiko SHIMIZU, Yoshihisa MIZUTANI, Hiroyuki MIURA
-
Patent number: 10128290Abstract: A solid-state imaging apparatus includes: a solid-state imaging device photoelectrically converting light taken by a lens; and a light shielding member shielding part of light incident on the solid-state imaging device from the lens, wherein an angle made between an edge surface of the light shielding member and an optical axis direction of the lens is larger than an incident angle of light to be incident on an edge portion of the light shielding member.Type: GrantFiled: April 24, 2018Date of Patent: November 13, 2018Assignee: Sony CorporationInventors: Toshiaki Iwafuchi, Masahiko Shimizu, Hirotaka Kobayashi
-
Publication number: 20180282253Abstract: There is provided a method allowing industrially efficient production of high quality acetic acid having a good potassium permanganate test value and a low impurity content without a large cost. The method for producing acetic acid according to the present invention has a carbonylation reaction step, an evaporation step and a lower boiling point component removal step, and wherein with heating of the evaporator, (i) an acetaldehyde concentration in the aqueous phase of an overhead condensate in a lower boiling point component removal column is controlled to not less than 2340 ppm by mass; and/or (ii) a methyl acetate concentration in the aqueous phase is controlled to less than 19.0% by mass and/or; (iii) a methyl acetate concentration in the organic phase of the overhead condensate in the lower boiling point component removal column is controlled to less than 38.Type: ApplicationFiled: May 25, 2017Publication date: October 4, 2018Applicant: DAICEL CORPORATIONInventor: Masahiko SHIMIZU
-
Publication number: 20180273459Abstract: It is intended to provide a method capable of industrially and efficiently producing acetic acid having a good potassium permanganate test value without a large cost. The method includes a step of distilling an aqueous phase and/or an organic phase of a column top condensate of a lower boiling point component removal column by a crotonaldehyde removal column; and the reflux ratio of the lower boiling point component removal column is not less than 2 (when the aqueous phase is refluxed), and the crotonaldehyde removal column is operated such that at least one of the following conditions (i) to (iii) is satisfied: (i) the reflux ratio of the distillation column is not less than 0.Type: ApplicationFiled: May 25, 2017Publication date: September 27, 2018Applicant: DAICEL CORPORATIONInventor: Masahiko SHIMIZU
-
Publication number: 20180258022Abstract: Provided is a method for producing acetic acid that is capable of greatly improving the life of a silver-substituted ion exchange resin (IER) for removing organic iodine compounds in acetic acid. With the method for producing acetic acid according to the present invention, in a carbonylation process of a methanol method, a nickel base alloy or zirconium is used as a material of a distillation column in a dehydration step, and as metal ion concentrations in a charging mixture of the distillation column in the dehydration step, an iron ion concentration is less than 10,000 ppb by mass, a chromium ion concentration is less than 5,000 ppb by mass, a nickel ion concentration is less than 3,000 ppb by mass, and a molybdenum ion concentration is less than 2,000 ppb by mass.Type: ApplicationFiled: May 25, 2017Publication date: September 13, 2018Applicant: DAICEL CORPORATIONInventor: Masahiko SHIMIZU
-
Publication number: 20180258021Abstract: It is intended to provide a method capable of industrially and efficiently producing acetic acid having a good potassium permanganate test value without a large cost. A method for producing acetic acid according to the present invention is a method for producing acetic acid comprising: a carbonylation reaction step; an evaporation step; a lower boiling point component removal step; and a first overhead stream recycle step of recycling at least a portion of an aqueous phase and/or an organic phase obtained by condensing a first overhead stream obtained in the lower boiling point component removal step to a reaction vessel, wherein a crotonaldehyde concentration in a first acetic acid stream obtained in the lower boiling point component removal step is controlled to not more than 2.2 ppm by mass. The catalyst system may further contain an ionic iodide.Type: ApplicationFiled: May 25, 2017Publication date: September 13, 2018Applicant: DAICEL CORPORATIONInventor: Masahiko SHIMIZU
-
Publication number: 20180240831Abstract: A solid-state imaging apparatus includes: a solid-state imaging device photoelectrically converting light taken by a lens; and a light shielding member shielding part of light incident on the solid-state imaging device from the lens, wherein an angle made between an edge surface of the light shielding member and an optical axis direction of the lens is larger than an incident angle of light to be incident on an edge portion of the light shielding member.Type: ApplicationFiled: April 24, 2018Publication date: August 23, 2018Applicant: Sony CorporationInventors: Toshiaki Iwafuchi, Masahiko Shimizu, Hirotaka Kobayashi
-
Publication number: 20180226446Abstract: A solid-state imaging apparatus includes: an imaging section having a light-receiving portion for receiving light from an object to image the object; and a substrate on which the imaging section is disposed, wherein a predetermined member provided on the substrate in the neighborhood of the light receiving portion is partially or entirely coated in black.Type: ApplicationFiled: April 4, 2018Publication date: August 9, 2018Inventors: MASAHIKO SHIMIZU, TOSHIAKI IWAFUCHI
-
Publication number: 20180201564Abstract: It is intended to provide a method capable of suppressing distillation apparatus corrosion as a method for producing acetic acid, comprising the step of distilling a crude acetic acid solution containing acetic acid and an impurity having a higher boiling point than that of acetic acid to purify the acetic acid. The method for producing acetic acid of the present invention comprises the step described above, wherein the distillation of the crude acetic acid solution is performed under a condition involving a distillation column bottom temperature of not more than 165° C. An acetic acid concentration in the crude acetic acid solution to be subjected to the distillation is preferably not less than 90 mass %. Examples of the impurity having a higher boiling point than that of acetic acid include acetates, acetic anhydride, and propionic acid. A column bottom pressure of the distillation column is preferably less than 0.255 MPaG.Type: ApplicationFiled: May 25, 2017Publication date: July 19, 2018Applicant: DAICEL CORPORATIONInventors: Masahiko SHIMIZU, Yoshihisa MIZUTANI
-
Publication number: 20180201562Abstract: It is intended to provide an acetic acid production method capable of industrially advantageously separating and removing a by-product acetaldehyde in the separation step of separating a process stream into aqueous and organic phases. In the present invention, the separation step satisfies, for example, the following conditions (vi) to (viii), and at least a portion of the aqueous phase is treated in the acetaldehyde separation and removal step: (vi) acetaldehyde concentrations in the aqueous and/or organic phases are not more than 28.1 mass % and not more than 24.8 mass %, respectively; (vii) a separation temperature is not more than 70° C.; and (viii) methyl acetate concentrations in the aqueous and/or organic phases are not more than 12.0 mass % and not more than 47.6 mass %, respectively, and/or the sum of the methyl acetate concentrations in the aqueous and organic phases is not more than 59.6 mass %.Type: ApplicationFiled: May 25, 2017Publication date: July 19, 2018Applicant: DAICEL CORPORATIONInventors: Masahiko SHIMIZU, Susumu GODA, Hiroyuki MIURA
-
Publication number: 20180201563Abstract: It is intended to provide a method capable of lowering a formic acid concentration in product acetic acid by a simple approach. The method for producing acetic acid according to the present invention comprises at least one step selected from a step that satisfies the following operating conditions (i) and a step that satisfies the following operating conditions (ii) in an acetic acid production process: (i) operating conditions involving a hydrogen partial pressure of less than 500 kPa (absolute pressure), a carbon dioxide partial pressure of less than 70 kPa (absolute pressure), and an operating temperature of more than 175° C.; and (ii) operating conditions involving a hydrogen partial pressure of not more than 5 kPa (absolute pressure), a carbon dioxide partial pressure of less than 20 kPa (absolute pressure), and an operating temperature of more than 100° C.Type: ApplicationFiled: May 25, 2017Publication date: July 19, 2018Applicant: DAICEL CORPORATIONInventor: Masahiko SHIMIZU
-
Patent number: 10018705Abstract: A radio communication apparatus includes an estimating unit that estimates directions of arrival of signals transmitted by a plurality of respective users, a calculating unit that calculates a map as a trigonometric function of an angle representing each of the directions of arrival estimated by the estimating unit, a grouping unit that groups the users based on the maps calculated by the calculating unit, and a determining unit that determines a weight coefficient for forming a directional beam steered to a user belonging to a group, for each group resultant of grouping performed by the grouping unit.Type: GrantFiled: February 23, 2016Date of Patent: July 10, 2018Assignee: FUJITSU LIMITEDInventor: Masahiko Shimizu
-
Patent number: 10008773Abstract: A wireless communication apparatus includes a plurality of phase adjusters configured to adjust the phase of a digital baseband signal d(k) for k=1, 2, . . . , K (K is a natural number equal to or larger than one) and output a plurality of digital signals d1(k), d2(k), dm(k) (m is a natural number equal to or larger than two) having phases different from each other, an i-th converter configured to convert a signal obtained by synthesizing the digital signals di(1), di(2), . . . , di(K) into an analog signal ai for i=1, 2, . . . , m, and a power supply circuit including a first stage circuit, a second stage circuit, . . . , an N-th stage circuit (N is a natural number equal to or larger than one).Type: GrantFiled: May 16, 2017Date of Patent: June 26, 2018Assignee: FUJITSU LIMITEDInventors: Kenichi Nishikawa, Kazuyuki Ozaki, Masahiko Shimizu
-
Patent number: 10009895Abstract: A transmission method executed by a transmission device, the transmission method including performing a plurality of transmitting processes in accordance with a plurality of transmitting patterns, each of the plurality of transmitting processes including transmitting a plurality of signals for a plurality of directions in parallel by forming a plurality of beams corresponding to the plurality of directions, each of the plurality of transmitting patterns being defined a combination of directions to be transmitted in parallel, receiving a result of a determining from a reception device, the determining including determining whether or not, for each of a plurality of receiving processes, the at least one signal satisfies a predetermined condition, each of the plurality of receiving processes including receiving at least one signal transmitted from the transmission device, and selecting a transmitting direction for the reception device from the plurality of directions based on a result of the determining.Type: GrantFiled: December 6, 2016Date of Patent: June 26, 2018Assignee: FUJITSU LLIMITEDInventors: Kenichi Nishikawa, Kazuyuki Ozaki, Masahiko Shimizu
-
Publication number: 20180158858Abstract: The present disclosure relates to an image sensor and an electronic device that make it possible to suppress the trouble such as mixing color, stray light, and reduction of the contour resolution that can be caused in the image sensor having a structure in which the light shielding body is arranged on the light receiving element layer.Type: ApplicationFiled: June 9, 2016Publication date: June 7, 2018Applicant: SONY CORPORATIONInventors: YUSUKE MORIYA, KUNIHIKO HIKICHI, HIROYUKI ITOU, ATSUSHI YAMAMOTO, MASAHIKO SHIMIZU
-
Patent number: RE46999Abstract: Acetic acid is produced while inhibiting increased concentrations of hydrogen iodide and acetic acid in an acetaldehyde distillation column.Type: GrantFiled: July 31, 2017Date of Patent: August 21, 2018Assignee: DAICEL CORPORATIONInventors: Masahiko Shimizu, Ryuji Saito, Hiroyuki Miura