Patents by Inventor Masahiko Tsukuda

Masahiko Tsukuda 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: 20200008729
    Abstract: To objectively grasp a stress state of a user and to prevent a mental disorder of the user, the following steps are performed: acquiring, via a network, biogas information at multiple timings and time information corresponding to each of the multiple timings, wherein the biogas information represents a concentration of phenol of a user acquired by a sensor that detects phenol discharged from a skin surface of the user; obtaining reference information representing an upper limit of a normal range of the concentration of phenol per unit period of time, using a memory storing the reference information representing the upper limit of the normal range; determining a stress time period during which a concentration of the phenol of the user is more than the upper limit of the normal range, based on the acquired biological gas information; and outputting time period information indicating the determined stress time period to an information terminal of the user, to display the stress time period indicated by the time
    Type: Application
    Filed: September 20, 2019
    Publication date: January 9, 2020
    Inventors: YUKARI NISHIYAMA, MASAHIKO TSUKUDA, YASUAKI OKUMURA
  • Publication number: 20200008728
    Abstract: In order to objectively grasp a stress state of a user and to prevent postpartum depression, biological gas information is acquired via a network, where the biological gas information indicates a concentration of ethylene glycol of the user and is obtained by a sensor that detects ethylene glycol released from a skin surface of the user. From a memory storing information including an upper limit of a normal range of the concentration of ethylene glycol per unit period, the information indicating the upper limit of the normal range is read out. When a frequency in the unit period with which the concentration of ethylene glycol of the user exceeds the upper limit of the normal range is determined to have an increasing tendency based on the biological gas information obtained during a pregnancy period of the user, the information related to stress of the user is output to an information terminal of the user.
    Type: Application
    Filed: September 20, 2019
    Publication date: January 9, 2020
    Inventors: YUKARI NISHIYAMA, MASAHIKO TSUKUDA, YASUAKI OKUMURA
  • Publication number: 20200008756
    Abstract: To objectively grasp a stress state of a user and to prevent a mental disorder of the user, the following steps are performed: acquiring, via a network, biogas information at multiple timings and time information corresponding to each of the multiple timings, wherein the biogas information represents a concentration of 2-ethyl-1-hexanol of a user acquired by a sensor that detects 2-ethyl-1-hexanol discharged from a skin surface of the user; obtaining reference information representing an upper limit of a normal range of the concentration of 2-ethyl-1-hexanol per unit period of time, using a memory storing the reference information representing the upper limit of the normal range; determining a stress time period during which a concentration of the 2-ethyl-1-hexanol of the user is more than the upper limit of the normal range, based on the acquired biological gas information; and outputting time period information indicating the determined stress time period to an information terminal of the user, to display t
    Type: Application
    Filed: September 20, 2019
    Publication date: January 9, 2020
    Inventors: YUKARI NISHIYAMA, MASAHIKO TSUKUDA, YASUAKI OKUMURA
  • Publication number: 20200008752
    Abstract: To objectively grasp a stress state of a user and to prevent a mental disorder of the user, the following steps are performed: acquiring, via a network, biogas information at multiple timings and time information corresponding to each of the multiple timings, wherein the biogas information represents a concentration of 1-dodecanol of a user acquired by a sensor that detects 1-dodecanol discharged from a skin surface of the user; obtaining reference information representing an upper limit of a normal range of the concentration of 1-dodecanol per unit period of time, using a memory storing the reference information representing the upper limit of the normal range; determining a stress time period during which a concentration of the 1-dodecanol of the user is more than the upper limit of the normal range, based on the acquired biological gas information; and outputting time period information indicating the determined stress time period to an information terminal of the user, to display the stress time period in
    Type: Application
    Filed: September 20, 2019
    Publication date: January 9, 2020
    Inventors: YUKARI NISHIYAMA, MASAHIKO TSUKUDA, YASUAKI OKUMURA
  • Publication number: 20200008753
    Abstract: In order to objectively grasp a stress state of a user and to prevent postpartum depression, biological gas information is acquired via a network, where the biological gas information indicates a concentration of benzyl alcohol of the user and is obtained by a sensor that detects benzyl alcohol released from a skin surface of the user. From a memory storing information including an upper limit of a normal range of the concentration of benzyl alcohol per unit period, the information indicating the upper limit of the normal range is read out. When a frequency in the unit period with which the concentration of benzyl alcohol of the user exceeds the upper limit of the normal range is determined to have an increasing tendency based on the biological gas information obtained during a pregnancy period of the user, the information related to stress of the user is output to an information terminal of the user.
    Type: Application
    Filed: September 20, 2019
    Publication date: January 9, 2020
    Inventors: YUKARI NISHIYAMA, MASAHIKO TSUKUDA, YASUAKI OKUMURA
  • Publication number: 20200008755
    Abstract: To objectively grasp a stress state of a user and to prevent a mental disorder of the user, the following steps are performed: acquiring, via a network, biogas information at multiple timings and time information corresponding to each of the multiple timings, wherein the biogas information represents a concentration of hexadecane of a user acquired by a sensor that detects hexadecane discharged from a skin surface of the user; obtaining reference information representing an upper limit of a normal range of the concentration of hexadecane per unit period of time, using a memory storing the reference information representing the upper limit of the normal range; determining a stress time period during which a concentration of the hexadecane of the user is more than the upper limit of the normal range, based on the acquired biological gas information; and outputting time period information indicating the determined stress time period to an information terminal of the user, to display the stress time period indica
    Type: Application
    Filed: September 20, 2019
    Publication date: January 9, 2020
    Inventors: YUKARI NISHIYAMA, MASAHIKO TSUKUDA, YASUAKI OKUMURA
  • Publication number: 20200008740
    Abstract: A method comprising: acquiring via a network biogas information representing a concentration of 2-ethylhexanoic acid of the user acquired by a sensor that detects the 2-ethylhexanoic acid discharged from a skin surface of the user; obtaining the reference information representing a lower limit of a normal range of the concentration of 2-ethylhexanoic acid per unit period of time, using a memory storing the reference information; and outputting information related to stress of the user an information terminal of the user, after it is determined that a frequency that concentration of the 2-ethylhexanoic acid of the user per the unit period of time is less than the lower limit of the normal range tends to increase, based on the biogas information acquired in a pregnancy period of the user.
    Type: Application
    Filed: September 19, 2019
    Publication date: January 9, 2020
    Inventors: YUKARI NISHIYAMA, MASAHIKO TSUKUDA, YASUAKI OKUMURA
  • Publication number: 20200008731
    Abstract: In order to objectively grasp a stress state of a user and to prevent postpartum depression, biological gas information is acquired via a network, where the biological gas information indicates a concentration of phenol of the user and is obtained by a sensor that detects phenol released from a skin surface of the user. From a memory storing information including an upper limit of a normal range of the concentration of phenol per unit period, the information indicating the upper limit of the normal range is read out. When a frequency in the unit period with which the concentration of phenol of the user exceeds the upper limit of the normal range is determined to have an increasing tendency based on the biological gas information obtained during a pregnancy period of the user, the information related to stress of the user is output to an information terminal of the user.
    Type: Application
    Filed: September 20, 2019
    Publication date: January 9, 2020
    Inventors: YUKARI NISHIYAMA, MASAHIKO TSUKUDA, YASUAKI OKUMURA
  • Publication number: 20200013505
    Abstract: To objectively grasp a stress state of a user and to prevent a mental disorder of the user, the following steps are performed: acquiring, via a network, biogas information at multiple timings and time information corresponding to each of the multiple timings, wherein the biogas information represents a concentration of ethylene glycol of a user acquired by a sensor that detects ethylene glycol discharged from a skin surface of the user; obtaining reference information representing an upper limit of a normal range of the concentration of ethylene glycol per unit period of time, using a memory storing the reference information representing the upper limit of the normal range; determining a stress time period during which a concentration of the ethylene glycol of the user is more than the upper limit of the normal range, based on the acquired biological gas information; and outputting time period information indicating the determined stress time period to an information terminal of the user, to display the stres
    Type: Application
    Filed: September 19, 2019
    Publication date: January 9, 2020
    Inventors: YUKARI NISHIYAMA, MASAHIKO TSUKUDA, YASUAKI OKUMURA
  • Publication number: 20200008726
    Abstract: To objectively grasp a stress state of a user and to prevent a mental disorder of the user, the following steps are performed: acquiring, via a network, biogas information at multiple timings and time information corresponding to each of the multiple timings, wherein the biogas information represents a concentration of acetophenone of a user acquired by a sensor that detects acetophenone discharged from a skin surface of the user; obtaining reference information representing an upper limit of a normal range of the concentration of acetophenone per unit period of time, using a memory storing the reference information representing the upper limit of the normal range; determining a stress time period during which a concentration of the acetophenone of the user is more than the upper limit of the normal range, based on the acquired biological gas information; and outputting time period information indicating the determined stress time period to an information terminal of the user, to display the stress time perio
    Type: Application
    Filed: September 19, 2019
    Publication date: January 9, 2020
    Inventors: YUKARI NISHIYAMA, MASAHIKO TSUKUDA, YASUAKI OKUMURA
  • Publication number: 20200008727
    Abstract: To objectively grasp a stress state of a user and to prevent a mental disorder of the user, the following steps are performed: acquiring, via a network, biogas information at multiple timings and time information corresponding to each of the multiple timings, wherein the biogas information represents a concentration of heptadecane of a user acquired by a sensor that detects heptadecane discharged from a skin surface of the user; obtaining reference information representing an upper limit of a normal range of the concentration of heptadecane per unit period of time, using a memory storing the reference information representing the upper limit of the normal range; determining a stress time period during which a concentration of the heptadecane of the user is more than the upper limit of the normal range, based on the acquired biological gas information; and outputting time period information indicating the determined stress time period to an information terminal of the user, to display the stress time period in
    Type: Application
    Filed: September 19, 2019
    Publication date: January 9, 2020
    Inventors: YUKARI NISHIYAMA, MASAHIKO TSUKUDA, YASUAKI OKUMURA
  • Publication number: 20200013506
    Abstract: To objectively grasp a stress state of a user and to prevent a mental disorder of the user, the following steps are performed: acquiring, via a network, biogas information at multiple timings and time information corresponding to each of the multiple timings, wherein the biogas information represents a concentration of benzyl alcohol of a user acquired by a sensor that detects benzyl alcohol discharged from a skin surface of the user; obtaining reference information representing an upper limit of a normal range of the concentration of benzyl alcohol per unit period of time, using a memory storing the reference information representing the upper limit of the normal range; determining a stress time period during which a concentration of the benzyl alcohol of the user is more than the upper limit of the normal range, based on the acquired biological gas information; and outputting time period information indicating the determined stress time period to an information terminal of the user, to display the stress ti
    Type: Application
    Filed: September 19, 2019
    Publication date: January 9, 2020
    Inventors: YUKARI NISHIYAMA, MASAHIKO TSUKUDA, YASUAKI OKUMURA
  • Publication number: 20200008754
    Abstract: A method includes: acquiring, via a network, biogas information at multiple timings and time information corresponding to time at each of the multiple timings, wherein the biogas represents a concentration of 2-ethylhexanoic acid of a user acquired by a sensor that detects the 2-ethylhexanoic acid discharged from a skin surface of the user; obtaining reference information representing a lower limit of a normal range of 2-ethylhexanoic acid per unit period of time, using a memory storing the reference information representing the lower limit of the normal range; determining a stress time period during which a concentration of the 2-ethylhexanoic acid of the user is less than the lower limit of the normal range, based on the acquired biogas information; and outputting time period information indicating the determined stress time period to an information terminal of the user.
    Type: Application
    Filed: September 20, 2019
    Publication date: January 9, 2020
    Inventors: YUKARI NISHIYAMA, MASAHIKO TSUKUDA, YASUAKI OKUMURA
  • Patent number: 9927400
    Abstract: The present invention provides a field asymmetric ion mobility spectrometer for selectively separating at least one kind of material from a mixture containing two or more kinds of materials. A filter included in the spectrometry comprises first—four plate-like electrodes each having a principal plane parallel to a direction from an ionizer toward a filter. The second plate-like electrode is located between the first plate-like electrode and the third plate-like electrode. The third plate-like electrode is located between the second plate-like electrode and the fourth plate-like electrode. The third and fourth plate-like electrodes are electrically connected to the first and second plate-like electrodes, respectively. An interspace is formed between two adjacent plate-like electrodes. The present invention provides a field asymmetric ion mobility spectrometer having high separation ability.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: March 27, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Masahiko Tsukuda, Tomohiro Ota, Takeshi Yamamoto, Norihito Tsukahara
  • Publication number: 20170343510
    Abstract: The present invention provides a field asymmetric ion mobility spectrometer for selectively separating at least one kind of material from a mixture containing two or more kinds of materials. A filter included in the spectrometry comprises first—four plate-like electrodes each having a principal plane parallel to a direction from an ionizer toward a filter. The second plate-like electrode is located between the first plate-like electrode and the third plate-like electrode. The third plate-like electrode is located between the second plate-like electrode and the fourth plate-like electrode. The third and fourth plate-like electrodes are electrically connected to the first and second plate-like electrodes, respectively. An interspace is formed between two adjacent plate-like electrodes. The present invention provides a field asymmetric ion mobility spectrometer having high separation ability.
    Type: Application
    Filed: November 14, 2016
    Publication date: November 30, 2017
    Inventors: MASAHIKO TSUKUDA, TOMOHIRO OTA, TAKESHI YAMAMOTO, NORIHITO TSUKAHARA
  • Patent number: 9528149
    Abstract: A detection device includes a PCR processor for conducting a PCR process on a first drop to a fourth drop flowing in a flow channel, a boundary detector for detecting intensities of fluorescence outputted from the first drop to the fourth drop after the PCR process and acquiring boundaries between the first drop to the fourth drop flowing in a flow channel based on the intensities of fluorescence, and a detector for acquiring a number of the second drop and the fourth drop having an intensity of fluorescence greater than or equal to a first threshold based on the intensity of fluorescence and boundaries between the first drop to the fourth drop, and detecting whether or not the objective nucleic acid target includes at least one selected from the group consisting of a first nucleic acid target and a second nucleic acid target based on the number of the second drop and the fourth drop.
    Type: Grant
    Filed: February 20, 2016
    Date of Patent: December 27, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Masahiko Tsukuda
  • Patent number: 9523123
    Abstract: Disclosed is a DNA detection device that detects a target DNA by detecting fluorescence output from sample droplets flowing through a flow path in a surface of a sensor chip, and that includes a fluorescence detector that detects fluorescence output from sample droplets flowing through the flow path, and a DNA detector that determines a type of fluorescent probe solution contained in each of the sample droplets based on a duration of the detected fluorescence and determines whether or not the sample droplet contains the target DNA based on whether intensity of the fluorescence is higher or lower than a threshold value.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: December 20, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Masahiko Tsukuda
  • Publication number: 20160265030
    Abstract: A detection device includes a PCR processor for conducting a PCR process on a first drop to a fourth drop flowing in a flow channel, a boundary detector for detecting intensities of fluorescence outputted from the first drop to the fourth drop after the PCR process and acquiring boundaries between the first drop to the fourth drop flowing in a flow channel based on the intensities of fluorescence, and a detector for acquiring a number of the second drop and the fourth drop having an intensity of fluorescence greater than or equal to a first threshold based on the intensity of fluorescence and boundaries between the first drop to the fourth drop, and detecting whether or not the objective nucleic acid target includes at least one selected from the group consisting of a first nucleic acid target and a second nucleic acid target based on the number of the second drop and the fourth drop.
    Type: Application
    Filed: February 20, 2016
    Publication date: September 15, 2016
    Inventor: MASAHIKO TSUKUDA
  • Publication number: 20160257992
    Abstract: Disclosed is a DNA detection device that detects a target DNA by detecting fluorescence output from sample droplets flowing through a flow path in a surface of a sensor chip, and that includes a fluorescence detector that detects fluorescence output from sample droplets flowing through the flow path, and a DNA detector that determines a type of fluorescent probe solution contained in each of the sample droplets based on a duration of the detected fluorescence and determines whether or not the sample droplet contains the target DNA based on whether intensity of the fluorescence is higher or lower than a threshold value.
    Type: Application
    Filed: February 18, 2016
    Publication date: September 8, 2016
    Inventor: MASAHIKO TSUKUDA
  • Patent number: 8526292
    Abstract: Shape-wise thicknesses of a cover layer and first through (N?1)th intermediate layers of an optical recording medium having refractive indexes nr1, nr2 are converted into thicknesses t1, t2 of the respective layers having a predetermined refractive index which makes a divergent amount equal to a divergent amount of a light beam resulting from the thicknesses tr1, tr2, a difference DFF between the sum of a thickness “ti” through a thickness “tj”, and the sum of a thickness “tk” through a thickness “tm” is set to 1 ?m or more (where i, j, k, and m are each any positive integer satisfying i?j<k?m?N), and the thicknesses t1, t2 are calculated by products of a function f(n) expressed by the following formula (1), and the thicknesses tr1, tr2: f(n)=?1.088n3+6.1027n2?12.042n+9.1007??(1) in the formula (1), n=nr1, nr2, . . . , and nrN.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: September 3, 2013
    Assignee: Panasonic Corporation
    Inventors: Yoshiaki Komma, Joji Anzai, Masahiko Tsukuda, Yasumori Hino