Patents by Inventor Koichi Iwasaki

Koichi Iwasaki 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).

  • Publication number: 20240134100
    Abstract: Provided are a lens device, an imaging apparatus, and a filter unit capable of suppressing occurrence of ghosts and flares. The lens device includes a first optical filter and a second optical filter in order from an object side in an optical path. The first optical filter is composed of an optical filter (for example, a band-pass filter) that has a light transmission band in a specific wavelength region. The second optical filter is composed of an optical filter (band-stop filter) that has a light absorption band in a wavelength region which is different from the light transmission band of the first optical filter.
    Type: Application
    Filed: January 3, 2024
    Publication date: April 25, 2024
    Applicant: FUJIFILM Corporation
    Inventors: Kazuyoshi OKADA, Yasunobu KISHINE, Yuya HIRAKAWA, Koichi TANAKA, Takashi KUNUGISE, Tatsuro IWASAKI
  • Patent number: 11946470
    Abstract: An information processing apparatus detecting presence or absence of abnormality of a vacuum pump derived from a product produced within a target vacuum pump, including: a determination unit configured to determine a normal variation range or a normal time variation behavior of a target state quantity which is a state quantity varying depending on a load of gas flowing into the vacuum pump, based on at least one of past target state quantities of the target vacuum pump or another vacuum pump; and a comparison unit configured to compare a current target state quantity of the target vacuum pump with the normal variation range or the normal time variation behavior and output the comparison result.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: April 2, 2024
    Assignee: EBARA CORPORATION
    Inventors: Keiji Maishigi, Tetsuro Sugiura, Katsuaki Usui, Masahiro Hatakeyama, Chikako Honma, Toru Osuga, Koichi Iwasaki, Jie Yuan Lin
  • Publication number: 20240077079
    Abstract: An information processing apparatus detecting presence or absence of abnormality of a vacuum pump derived from a product produced within a target vacuum pump, including: a determination unit configured to determine a normal variation range or a normal time variation behavior of a target state quantity which is a state quantity varying depending on a load of gas flowing into the vacuum pump, based on at least one of past target state quantities of the target vacuum pump or another vacuum pump; and a comparison unit configured to compare a current target state quantity of the target vacuum pump with the normal variation range or the normal time variation behavior and output the comparison result.
    Type: Application
    Filed: November 14, 2023
    Publication date: March 7, 2024
    Inventors: Keiji MAISHIGI, Tetsuro SUGIURA, Katsuaki USUI, Masahiro HATAKEYAMA, Chikako HONMA, Toru OSUGA, Koichi IWASAKI, Jie Yuan LIN
  • Patent number: 11917917
    Abstract: A thermoelectric conversion element that has a power generation layer containing an iron-aluminum based magnetic alloy material containing equal to or more than 70 weight percent of iron and aluminum in total. The power generation layer generates an electromotive force, due to an anomalous Nernst effect that develops in the magnetic alloy material in response to a temperature gradient applied thereto, in a direction intersecting both the magnetization direction of the magnetic alloy material and the direction of the applied temperature gradient.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: February 27, 2024
    Assignee: NEC CORPORATION
    Inventors: Akihiro Kirihara, Yasutomo Omori, Ryohto Sawada, Masahiko Ishida, Koichi Terashima, Yuma Iwasaki, Hiroko Someya
  • Publication number: 20220109117
    Abstract: An object of the present invention is to provide a photoelectric conversion element that exhibits stable performance even though a compositional ratio of a photoelectric conversion film fluctuates in a case of manufacturing the photoelectric conversion film by vapor deposition. In addition, an imaging element, an optical sensor, and a material for a photoelectric conversion element are provided. The photoelectric conversion element of the present invention includes a conductive film, a photoelectric conversion film, and a transparent conductive film in this order, in which the photoelectric conversion film contains a compound represented by Formula (1) and an n-type semiconductor material.
    Type: Application
    Filed: December 15, 2021
    Publication date: April 7, 2022
    Applicant: FUJIFILM Corporation
    Inventors: Tomoaki YOSHIOKA, Koichi IWASAKI
  • Patent number: 11171165
    Abstract: The present invention provides a photoelectric conversion element including a photoelectric conversion film having a narrow half-width of absorption peak and an excellent photoelectric conversion efficiency, and an imaging element, an optical sensor, and a compound. The photoelectric conversion element according to the present invention includes a conductive film, a photoelectric conversion film, and a transparent conductive film, in this order, in which the photoelectric conversion film contains a compound represented by Formula (1).
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: November 9, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Eiji Fukuzaki, Tomoyuki Mashiko, Tomoaki Yoshioka, Koichi Iwasaki
  • Publication number: 20210135128
    Abstract: The present invention is to provide a photoelectric conversion element having excellent heat resistance. In addition, an imaging element and an optical sensor which include the photoelectric conversion element are provided. Furthermore, a compound applied to the photoelectric conversion element is provided. A photoelectric conversion element according to the present invention includes a conductive film, a photoelectric conversion film, and a transparent conductive film, in this order, in which the photoelectric conversion film contains a compound represented by Formula (1). In Formula (1), Y1 represents a group represented by Formula (1-1) or a group represented by Formula (1-2).
    Type: Application
    Filed: January 11, 2021
    Publication date: May 6, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Tomoaki YOSHIOKA, Tomoyuki MASHIKO, Koichi IWASAKI
  • Publication number: 20200411569
    Abstract: The present invention provides a photoelectric conversion element including a photoelectric conversion film having a narrow half-width of absorption peak and an excellent photoelectric conversion efficiency, and an imaging element, an optical sensor, and a compound. The photoelectric conversion element according to the present invention includes a conductive film, a photoelectric conversion film, and a transparent conductive film, in this order, in which the photoelectric conversion film contains a compound represented by Formula (1).
    Type: Application
    Filed: September 8, 2020
    Publication date: December 31, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Eiji FUKUZAKI, Tomoyuki MASHIKO, Tomoaki YOSHIOKA, Koichi IWASAKI
  • Patent number: 10641272
    Abstract: A vacuum pump with abatement function which can prevent contamination of a process chamber without allowing products generated by exhaust gas treatment to flow back to the process chamber, and can reduce the amount of gas to be treated without allowing a purge gas and a diluent gas to be contained in an exhaust gas, and thus can achieve energy saving by reducing the amount of energy required for the exhaust gas treatment in an abatement part is disclosed. The vacuum pump with abatement function includes a vacuum pump to which at least one abatement part for treating an exhaust gas is attached. The vacuum pump comprises a dry vacuum pump having a pair of multistage pump rotors each of which comprises a plurality of rotors arranged on a rotating shaft, and the at least one abatement part is connected to an interstage of the multistage pump rotors.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: May 5, 2020
    Assignee: EBARA CORPORATION
    Inventors: Koichi Iwasaki, Hiroki Furuta, Keiichi Ishikawa, Tetsuo Komai, Shinichi Sekiguchi
  • Patent number: 10641256
    Abstract: A vacuum pump with abatement function which can prevent contamination of a process chamber without allowing products generated by exhaust gas treatment to flow back to the process chamber, and can reduce the amount of gas to be treated without allowing a purge gas and a diluent gas to be contained in an exhaust gas, and thus can achieve energy saving by reducing the amount of energy required for the exhaust gas treatment in an abatement part is disclosed. The vacuum pump with abatement function includes a vacuum pump to which at least one abatement part for treating an exhaust gas is attached. The vacuum pump comprises a dry vacuum pump having a main pump capable of evacuating gas from an atmospheric pressure and a booster pump for increasing an evacuation speed of the main pump, and the at least one abatement part for treating the exhaust gas is connected between the main pump and the booster pump.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: May 5, 2020
    Assignee: EBARA CORPORATION
    Inventors: Hiroki Furuta, Koichi Iwasaki, Keiichi Ishikawa, Tetsuo Komai, Shinichi Sekiguchi
  • Publication number: 20200109712
    Abstract: An information processing apparatus detecting presence or absence of abnormality of a vacuum pump derived from a product produced within a target vacuum pump, including: a determination unit configured to determine a normal variation range or a normal time variation behavior of a target state quantity which is a state quantity varying depending on a load of gas flowing into the vacuum pump, based on at least one of past target state quantities of the target vacuum pump or another vacuum pump; and a comparison unit configured to compare a current target state quantity of the target vacuum pump with the normal variation range or the normal time variation behavior and output the comparison result.
    Type: Application
    Filed: March 13, 2018
    Publication date: April 9, 2020
    Inventors: Keiji Maishigi, Tetsuro Sugiura, Katsuaki Usui, Masahiro Hatakeyama, Chikako Honma, Toru Osuga, Koichi Iwasaki, Jie Yuan Lin
  • Publication number: 20200109470
    Abstract: A vacuum evacuation system which can prevent an increase in pressure in one process chamber when evacuating an atmospheric-pressure gas from another process chamber is disclosed. The vacuum evacuation system can be used for evacuating a gas from a plurality of process chambers. The vacuum evacuation system includes: first vacuum pumps; buffer tanks coupled to the first vacuum pumps, respectively; a second vacuum pump; and a collecting pipe providing a communication between the first vacuum pumps and the second vacuum pump.
    Type: Application
    Filed: September 27, 2019
    Publication date: April 9, 2020
    Inventors: Masanobu SAITO, Hideo ARAI, Koichi IWASAKI, Toru OSUGA, Atsushi SHIOKAWA
  • Publication number: 20150260174
    Abstract: A vacuum pump with abatement function which can prevent contamination of a process chamber without allowing products generated by exhaust gas treatment to flow back to the process chamber, and can reduce the amount of gas to be treated without allowing a purge gas and a diluent gas to be contained in an exhaust gas, and thus can achieve energy saving by reducing the amount of energy required for the exhaust gas treatment in an abatement part is disclosed. The vacuum pump with abatement function includes a vacuum pump to which at least one abatement part for treating an exhaust gas is attached. The vacuum pump comprises a dry vacuum pump having a main pump capable of evacuating gas from an atmospheric pressure and a booster pump for increasing an evacuation speed of the main pump, and the at least one abatement part for treating the exhaust gas is connected between the main pump and the booster pump.
    Type: Application
    Filed: March 12, 2015
    Publication date: September 17, 2015
    Inventors: Hiroki FURUTA, Koichi IWASAKI, Keiichi ISHIKAWA, Tetsuo KOMAI, Shinichi SEKIGUCHI
  • Publication number: 20150260192
    Abstract: A vacuum pump with abatement function which can prevent contamination of a process chamber without allowing products generated by exhaust gas treatment to flow back to the process chamber, and can reduce the amount of gas to be treated without allowing a purge gas and a diluent gas to be contained in an exhaust gas, and thus can achieve energy saving by reducing the amount of energy required for the exhaust gas treatment in an abatement part is disclosed. The vacuum pump with abatement function includes a vacuum pump to which at least one abatement part for treating an exhaust gas is attached. The vacuum pump comprises a dry vacuum pump having a pair of multistage pump rotors each of which comprises a plurality of rotors arranged on a rotating shaft, and the at least one abatement part is connected to an interstage of the multistage pump rotors.
    Type: Application
    Filed: March 10, 2015
    Publication date: September 17, 2015
    Inventors: Koichi IWASAKI, Hiroki FURUTA, Keiichi ISHIKAWA, Tetsuo KOMAI, Shinichi SEKIGUCHI
  • Patent number: 6843288
    Abstract: The present invention provides a tire/wheel assembly and a run-flat support member. The tire/wheel assembly is formed as follows: a pneumatic tire is fitted to a wheel rim; and the run-flat support member constituted of a circular shell and elastic rings is inserted into a cavity of the pneumatic tire, in which the circular shell has a support surface thereof extended toward the periphery of the tire and leg portions along each side of the support surface, and the elastic rings support the leg portions of the circular shell on the wheel rim. In the tire/wheel assembly, a plurality of through-holes or wavy asperities are made in the inner rim of each of the leg portions of the circular shell along a shell circumferential direction. The inner rims in which these through-holes or asperities are formed are embedded in the elastic rings.
    Type: Grant
    Filed: July 15, 2003
    Date of Patent: January 18, 2005
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Akikazu Seko, Takuzo Sano, Koichi Iwasaki
  • Publication number: 20040016489
    Abstract: The present invention provides a tire/wheel assembly and a run-flat support member in which an improvement in durability is enabled for run-flat traveling. The tire/wheel assembly is formed as follows: a pneumatic tire is fitted to a wheel rim; and the run-flat support member constituted of a circular shell and elastic rings is inserted into a cavity of the pneumatic tire, in which the circular shell has a support surface thereof extended toward the periphery of the tire and leg portions along each side of the support surface, and the elastic rings support the leg portions of the circular shell on the wheel rim. In the tire/wheel assembly, a plurality of through-holes or wavy asperities are made in the inner rim of each of the leg portions of the circular shell along a shell circumferential direction. The inner rims in which these through-holes or asperities are formed are embedded in the elastic rings.
    Type: Application
    Filed: July 15, 2003
    Publication date: January 29, 2004
    Inventors: Akikazu Seko, Takuzo Sano, Koichi Iwasaki
  • Patent number: 6353009
    Abstract: Insulin sensitivity enhancers, such as troglitazone, have the ability to treat and/or prevent hyperuricemia and may thus be used for the therapy or prophylaxis of such diseases as gout, urinary calculus, hyperuricemic nephropathy and Lesch-Nyhan syndrome.
    Type: Grant
    Filed: November 18, 1998
    Date of Patent: March 5, 2002
    Assignee: Sankyo Company, Limited
    Inventors: Toshihiko Fujiwara, Koichi Iwasaki, Hiroyoshi Horikoshi
  • Patent number: 5738327
    Abstract: A seat adjuster of a vehicular seat is provided with a seat lifting mechanism which includes front and rear shafts which are supported to vertically extending walls of a pair of seat rails for sliding a vehicular seat. One end portion of each shaft has a bulged portion for receiving the wall and a groove for setting a stop ring. The end portion is inserted to a through-hole of the wall and limitingly connected thereto by means of the bulged portion and the stop pin set in the groove.
    Type: Grant
    Filed: February 22, 1996
    Date of Patent: April 14, 1998
    Assignee: Ikeda Bussan Co., Ltd.
    Inventors: Yuji Tanaka, Koichi Iwasaki
  • Patent number: 5642918
    Abstract: A moveable headrest is equipped with a lower headrest frame shaft fixedly connected to a headrest stay detachably connected to the upper end of the seat back, and a pair of ratchet bases rotatably supported on respective shaft ends of the lower frame shaft. The ratchet bases are coupled with each other at their upper ends through a moveable upper headrest frame. A ratchet-and-pawl mechanism is attached to at least one of the base members for selectively engaging the upper frame with the lower frame shaft and for producing a forward-and-backward angular adjustment of the headrest. The shaft end of the lower frame shaft is formed with an annular stepped portion extending continuously in a peripheral direction of the lower frame shaft nearby the top end, so that the annular stepped portion abuts the inside wall surface of the ratchet base.
    Type: Grant
    Filed: February 21, 1996
    Date of Patent: July 1, 1997
    Assignee: Ikeda Bussan Co., Ltd.
    Inventors: Manabu Sakamoto, Koichi Iwasaki
  • Patent number: 4388960
    Abstract: A motorcycle tire suitable for running on a road having rain grooves formed on the surface, which has a first main groove circumferentially continuously formed in a central region of the tread portion and second main grooves formed at least one run of unitary groove portions at each side of and with space from the first main groove and having interrupted portions at intervals in the circumferential direction of the tire. The first main groove comprises a plurality of groove segments and a plurality of connecting groove segments, and the groove segments, which lie circumferentially alternately at one and the other of two regions of the tread portion divided and lying closely along the center line of the tread portion and lie parallel to the center line and circumferentially successively spaced, are connected by the connecting groove segments which extend across the center line and connect together the facing ends of each two adjacent groove segments.
    Type: Grant
    Filed: June 15, 1981
    Date of Patent: June 21, 1983
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Makoto Wada, Koichi Iwasaki, Hajime Nakata