WO2005000513A1 - Dispositif de refusion - Google Patents

Dispositif de refusion Download PDF

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Publication number
WO2005000513A1
WO2005000513A1 PCT/JP2004/008876 JP2004008876W WO2005000513A1 WO 2005000513 A1 WO2005000513 A1 WO 2005000513A1 JP 2004008876 W JP2004008876 W JP 2004008876W WO 2005000513 A1 WO2005000513 A1 WO 2005000513A1
Authority
WO
WIPO (PCT)
Prior art keywords
temperature
cooling
reflow
flux
furnace body
Prior art date
Application number
PCT/JP2004/008876
Other languages
English (en)
Japanese (ja)
Inventor
Fumihiro Yamashita
Kiyoshi Dozono
Original Assignee
Kabushiki Kaisha Tamura Seisakusho
Kabushiki Kaisha Tamura Fa System
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kabushiki Kaisha Tamura Seisakusho, Kabushiki Kaisha Tamura Fa System filed Critical Kabushiki Kaisha Tamura Seisakusho
Publication of WO2005000513A1 publication Critical patent/WO2005000513A1/fr

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D19/00Arrangements of controlling devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00Soldering, e.g. brazing, or unsoldering
    • B23K1/008Soldering within a furnace
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/004Systems for reclaiming waste heat

Definitions

  • the present invention relates to a reflow device for cooling a high-temperature atmosphere.
  • a reflow apparatus in which a cooling means for cooling a high-temperature atmosphere is provided in a reflow heating section of a furnace body for reflow heating a work so that a work temperature profile at the time of reflow heating can be more finely controlled.
  • Reference 1 a cooling means for cooling a high-temperature atmosphere is provided in a reflow heating section of a furnace body for reflow heating a work so that a work temperature profile at the time of reflow heating can be more finely controlled.
  • Patent Document 1 JP-A-2000-188466 (page 1, FIG. 1)
  • the present invention has been made in view of the above points, and a reflow apparatus capable of reducing the temperature in a reflow heating section of a furnace body in a short time and preventing flux gas from adhering in the reflow heating section.
  • the purpose is to provide.
  • the invention described in claim 1 provides a furnace body having a reflow heating section for reflow heating a work, and a furnace body provided outside the furnace body and after taking out a high-temperature atmosphere from the reflow heating section to the outside. And a cooling means interposed in the circulation system for cooling the high-temperature atmosphere, wherein the high-temperature atmosphere in the reflow heating section is provided in the circulation system provided outside the furnace body. Because the cooling means for cooling the reflow heating unit is interposed, the ambient temperature in the reflow heating unit can be reduced in a short time according to the peak, and at this time, the atmosphere temperature is provided outside the furnace body. Since the high-temperature atmosphere is cooled by the circulation system, it is possible to prevent the possibility that the flux in the atmosphere is liquefied and adheres to the furnace during the cooling.
  • the invention described in claim 2 is a reflow apparatus according to claim 1, wherein the reflow apparatus has an atmosphere temperature.
  • the cooling capacity of the cooling means is made larger than usual, the high-temperature atmosphere temperature in the reflow heating section can be automatically lowered in a short time.
  • the invention described in claim 3 is the reflow apparatus according to claim 1 or 2, further comprising a flux recovery means for recovering the flux condensed from the circulating air cooled by the cooling means.
  • the flux contained in the high-temperature atmosphere in the furnace can be recovered by the above-mentioned flux recovery means.
  • the high-temperature atmosphere is cooled by a circulation system outside the furnace, so that the liquefied flux is removed from the furnace. Can be prevented.
  • the invention described in claim 4 is a reflow device according to any one of claims 1 to 3, wherein the cooling means is provided with a cooling capacitor that receives supply of cooling water and liquefies a vaporized flux.
  • a flow rate adjusting valve for adjusting a flow rate of the cooling water supplied to the cooling condenser; a temperature sensor for detecting a temperature of the circulating wind after passing through the cooling condenser; and a circulating wind detected by the temperature sensor.
  • Temperature control means for controlling the flow rate of the cooling water of the flow rate control valve so as to control the temperature to the set temperature.
  • the temperature of the circulating air after passing through the cooling capacitor is detected by the temperature sensor, and the temperature set by the temperature control unit is set as a target value.
  • the invention described in claim 5 provides a filter for removing the flux in the circulating system power circulating wind in the reflow device according to any one of claims 1 to 4, and a filter provided downstream of the filter. Since the circulating air from which the flux mist or the like has been removed by the filter is sucked into the blowing means, it is possible to prevent the possibility that the flux adheres to the blowing means.
  • the invention described in claim 6 is provided with a heating unit disposed downstream of the circulating system power cooling means in the reflow device according to claims 1 to 5, and includes a heating unit.
  • the cooling means for cooling the high-temperature atmosphere in the reflow heating section is interposed in the circulation system provided outside the furnace body, the reflow heating is performed according to the workpiece.
  • the temperature of the atmosphere inside the furnace can be reduced in a short time, and at this time, the high-temperature atmosphere is cooled by the circulation system provided outside the furnace body. The risk of adhering to the body can be prevented.
  • the control unit increases the cooling capacity of the cooling unit more than usual, so that the high-temperature ambient temperature in the reflow heating unit can be reduced in a short time. Can be lowered automatically.
  • the flux contained in the high-temperature atmosphere in the furnace can be recovered by the flux recovery means, and at this time, the high-temperature atmosphere is cooled by the circulation system outside the furnace.
  • the liquefied flux can be prevented from adhering to the inside of the furnace.
  • the temperature of the circulating air after passing through the cooling condenser is detected by the temperature sensor, and the temperature of the circulating air after passing through the cooling condenser is detected by the temperature sensor.
  • the temperature adjusting means controls the circulation amount of the cooling water by adjusting the flow control valve so that the detected temperature of the temperature sensor matches the set temperature.
  • the temperature of the circulating air can be feedback controlled with high precision, and the difference in the flux gas liquefaction temperature depending on the soldering material used can be handled.
  • the circulating air from which the flux mist or the like has been removed by the filter is sucked into the blowing means, so that the possibility that the flux adheres to the blowing means can be prevented.
  • the heating unit heats the circulating air returned to the reflow heating section of the furnace body and raises the temperature to the ambient temperature of the reflow heating section, so that the inside of the reflow heating section is heated. Temperature change can be reduced.
  • FIG. 1 is a circuit diagram showing a first embodiment of a reflow device according to the present invention.
  • Garden 2 is a sectional view showing an outline of the reflow device.
  • FIG. 3 is a circuit diagram showing a second embodiment of the reflow apparatus according to the present invention. Explanation of symbols
  • a reflow device is provided inside a furnace body 11 for preheating a workpiece W.
  • a pre-heat heating unit 12 There is provided a pre-heat heating unit 12, a reflow heating unit 13 for reflow heating the work W, and a work cooling unit 14 for cooling the work W.
  • a conveyor 15 that engages and transports the work W with the endless chains on both sides is provided so as to penetrate the preheat heating section 12, the reflow heating section 13 and the work cooling section 14.
  • the preheat heating unit 12 has a heater 16, a fan 17, and a temperature sensor 18 on the upper and lower sides of the conveyor 15, and radiates heat from the heater 16 and generates relatively low-temperature hot air by the fan 17.
  • the workpiece W is preheated by the heated atmosphere, and the reflow heating section 13 has a heater 21, a fan 22, and a temperature sensor 23 on the upper side and the lower side of the conveyor 15 to be heated to a higher temperature than the preheat heating section 12.
  • the work W is mainly heated by the radiant heat from 21 and the high-temperature atmosphere which has been turned into a relatively high-temperature hot air by the fan 22.
  • the work cooling unit 14 has a fan 24 on the upper side and the lower side of the conveyor 15, and this fan The cool air from 24 cools the peak W after the reflow heating.
  • the ambient temperatures of the preheat heating section 12 and the reflow heating section 13 are detected by the temperature sensors 18 and 23, respectively, and the heaters 16 and 16 are set so that the detected temperatures become the set target temperatures.
  • the amount of current to the power supply 21 is controlled.
  • each temperature sensor 23 for detecting the atmosphere temperature is connected to a controller 25 as a control means.
  • the amount of power to each heater 21 is controlled so that the temperature detected by the temperature sensor 23 matches the target set temperature.
  • a circulation system 26 is provided outside the furnace body 11 having the reflow heating section 13 to take out a high-temperature atmosphere from the reflow heating section 13 and then return it to the furnace body 11. It has been done.
  • the circulation system 26 has a plurality of pipes 27 drawn from the upper part of the furnace body 11 and cooling means 28 for cooling the high-temperature reflow atmosphere interposed therebetween.
  • a plurality of circulating air inlets 33 opened to the condenser body 32 of the cooling condenser 31 are connected to the pipe 27, respectively, and the cooling water is supplied into the condenser body 32 of the cooling condenser 31.
  • a cooling coil 34 for liquefying the vaporized flux by receiving the cooling water is provided, and a cooling water flow is supplied to the cooling coil 34 of the cooling condenser 31 in a pipe line 35 according to an electric signal.
  • An electric valve 36 is provided as a flow regulating valve for adjusting.
  • pipes 38 are respectively connected to a plurality of circulating air outlets 37 opened in the condenser main body 32 of the cooling condenser 31, and cooling is provided to a T-shaped pipe joint section 39 connecting these pipes 38.
  • a temperature sensor 41 for detecting the temperature of the circulating air after passing through the condenser 31 is connected, and the temperature sensor 41 is connected to a temperature indicating controller 42 as temperature adjusting means.
  • a control line 43 drawn from the temperature indicating controller 42 is connected to the operating portion 36a of the motor-operated valve 36, and the temperature of the circulating air detected by the temperature sensor 41 is indicated by the temperature indicating controller 42.
  • a function is provided for adjusting the flow rate of the cooling water throttled by the electric valve 36 so as to control the temperature to the indicated and set temperature.
  • the controller 25 sets the electric valve 36 of the cooling means 28 to the maximum (100 %) Is a control means for opening the valve to start the cooling operation in which the cooling capacity of the cooling condenser 31 is increased from that in the normal operation, that is, the cooling operation is started.
  • the control line 44 of the controller 25 is connected to the temperature indicating controller 42. It is connected to the.
  • the controller 25 automatically starts the cooling operation when the set value of the set temperature of the reflow heating unit 13 is changed to a desired temperature (for example, 10 ° C) which can be arbitrarily set, and the cooling operation is started.
  • a function is provided for automatically stopping the cooling operation when the error between the detected temperature of the reflow heating unit 13 and the set temperature falls within a arbitrarily settable predetermined temperature (for example, 5 ° C.).
  • a liquefied flux recovery port 45 is provided at the bottom of the condenser body 32 of the cooling condenser 31, and the liquefied flux recovery port 45 is condensed from the circulating air cooled by the cooling condenser 31 via a pipe 46.
  • a flux recovery tank 47 is connected as a flux recovery means for recovering the liquefied flux.
  • the circulation system 26 has a dedicated blower unit 51 for circulation, and the T-shaped fitting 39 is connected to the blower unit 51.
  • the blower unit 51 has a filter 52 for removing flux mist and dust that has not been liquefied in the circulating air, and a blower 53 provided as a blower provided downstream of the filter 52, which is integrated with a force S. It is.
  • the blow-out port 54 of the blower 53 is connected to a lower part of the furnace body 11 via a pipe 55.
  • the basic operation is as follows.
  • the suction force of the blower 53 extracts the high-temperature atmosphere from the reflow heating section 13 of the furnace body 11 and passes through the cooling condenser 31 to condense the vaporized flux components, and the liquefied flux
  • the circulating air from which the flux has been collected in the flux recovery tank 47 and whose flux has been removed is returned to the reflow heating section 13 through the filter 52 and the blower 53.
  • the setting temperature of the reflow heating section 13 is changed by more than 10 ° C (can be set arbitrarily) by input operation to the controller 25 due to the change of the workpiece W, the signal from the controller 25 is sent.
  • the received temperature indicating controller 42 automatically starts cooling operation.
  • the motor-operated valve 36 for controlling the cooling water amount is set to the output of 100%, that is, the fully opened state, and the cooling efficiency is increased.
  • the temperature in the reflow heating unit 13 is automatically decreased in a short time.
  • the temperature of the circulating air passing through the cooling condenser 31 is detected by the temperature sensor 41, and the temperature indication is set so that the detected temperature becomes equal to the temperature set by the temperature indication controller 42.
  • the controller 42 controls the amount of cooling water circulated by the motor-operated valve 36.
  • the cooling capacity of the cooling condenser 31 does not increase during the cooling operation, but the temperature of the circulating air can be reduced to a temperature sufficient to condense and recover the flux.
  • the condensing temperature of the flux gas in the circulating air that is, the liquefaction temperature is different depending on the soldering material (solder paste) used.
  • the cooling means 28 for cooling the high-temperature atmosphere in the reflow heating unit 13 is interposed in the circulation system 26 provided outside the furnace body 11, the reflow heating unit 13 in the reflow heating unit 13 set according to the work W is provided.
  • the ambient temperature can be significantly reduced in a short time.
  • the controller 25 allows the cooling function of the cooling means 28 to function to the utmost, so that the high-temperature ambient temperature in the reflow heating unit 13 can be automatically reduced in a short time. .
  • the flux recovery tank 47 can recover the flux contained in the high-temperature atmosphere in the furnace body 11, and can prevent the liquefied flux from adhering to the inner wall of the furnace body 11.
  • the temperature of the circulating air after passing through the cooling capacitor 31 is detected by the temperature sensor 41, and the temperature set in the temperature indicating controller 42 is detected.
  • the temperature indicating controller 42 controls the circulation amount of the cooling water by adjusting the electric valve 36 so that the temperature detected by the temperature sensor 41 matches the set temperature, thereby reducing the temperature of the circulating air. It can perform feedback control with high accuracy and can respond to differences in the flux gas liquefaction temperature depending on the soldering material used.
  • FIG. 3 a second embodiment shown in FIG. 3 will be described.
  • the same parts as those in the first embodiment shown in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted.
  • a heating unit 61 is provided downstream of the cooling means 28 of the circulation system 26.
  • an inlet 63 of a heating tank 62 is connected to each outlet 54 of the blower 53 via each pipe 55, and a circulating wind is provided inside the heating tank 62.
  • a heater 64 for heating the heater 64 is provided.
  • a temperature sensor 66 is provided at a T-shaped fitting section 65 connected to the heating tank 62, and the temperature sensor 66 provides a temperature instruction for controlling the heater 64. Connected to controller 67.
  • the temperature indicating controller 67 controls the amount of electricity supplied to the heater 64 such that the temperature of the circulating air detected by the temperature sensor 66 becomes equal to the temperature indicated and set by the temperature indicating controller 67. I do. Further, the T-shaped pipe joint portion 65 is connected to a lower portion of the furnace body 11 by a pipe line 55.
  • the high-temperature atmosphere is extracted from the reflow heating unit 13 by the suction force of the blower 53, and when passing through the cooling condenser 31, the flux components in the circulating air are condensed and collected.
  • the circulating air passing through 53 is passed through the heating tank 62 of the heating unit 61. After the temperature is raised, the temperature is returned to the reflow heating unit 13.
  • a signal output from the controller 25 The temperature indicating controller 42 automatically starts the cooling operation of the cooling means 28 and controls the motor-operated valve 36 for controlling the amount of cooling water to a fully open state.
  • the heating unit 61 does not function, and the circulating air that has passed through the filter 52 and the blower 53 is returned to the reflow heating unit 13 that does not need to heat the inside of the heating tank 62.
  • the controller 25 automatically starts the cooling operation. Is stopped, and the electric valve 36 for controlling the amount of cooling water is throttled through the temperature indicating controller 42.
  • the controller 25 throttle-controls the electric valve 36 for controlling the amount of cooling water via the temperature indicating controller 42 of the cooling means 28 and controls the temperature indicating controller 67 of the heating unit 61 by a control signal. Is sent to return the temperature of the circulating air lowered for the purpose of flux recovery to the set temperature of the reflow heating unit 13 and then return to the reflow heating unit 13.
  • the present invention can control the work temperature profile at the time of reflow heating, and can be applied to reflow using lead-free solder that requires strict temperature control.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Electric Connection Of Electric Components To Printed Circuits (AREA)

Abstract

L'invention concerne un dispositif de refusion capable de réduire rapidement la température dans une partie de chauffage par refusion d'un corps d'un four et d'empêcher l'adhésion d'un gaz d'un flux dans la partie de chauffage par refusion. Un système de circulation (26) est placé à l'extérieur du corps (11) du four de manière à chauffer par refusion une pièce à usiner (W) dans la partie de chauffage par refusion (13) et il (26) prélève une atmosphère à température élevée à l'extérieur et la renvoie dans le corps (11) du four. Des moyens de refroidissement (28) permettant de refroidir l'atmosphère à température élevée sont prévus dans le système de circulation (26). Les moyens de refroidissement (28) comprennent un condensateur de refroidissement (31) permettant de liquéfier un flux à l'état de vapeur au moyen d'eau de refroidissement alimentée. Le débit de l'eau de refroidissement alimentée dans le condensateur de refroidissement (31) est régulé au moyen d'une soupape à commande électrique (36) mise en oeuvre en fonction d'un signal électrique. La température de l'air de circulation après être passé dans le condensateur de refroidissement (31) est détectée au moyen d'un capteur de température (41). Un indicateur/adaptateur de température (42) recevant la température de l'air de circulation détectée du capteur de température (41) règle le débit de l'eau de refroidissement s'écoulant dans la soupape à commande électrique (26), de manière que la température détectée soit réglée en fonction d'une température établie par l'indicateur/adaptateur de température (42).
PCT/JP2004/008876 2003-06-27 2004-06-24 Dispositif de refusion WO2005000513A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003-185395 2003-06-27
JP2003185395A JP2005014074A (ja) 2003-06-27 2003-06-27 リフロー装置

Publications (1)

Publication Number Publication Date
WO2005000513A1 true WO2005000513A1 (fr) 2005-01-06

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WO (1) WO2005000513A1 (fr)

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CN104972218A (zh) * 2015-06-11 2015-10-14 德清县新高凌不锈钢材料有限公司 真空焊接炉温控装置
US10340045B2 (en) 2014-10-21 2019-07-02 uBiome, Inc. Method and system for microbiome-derived diagnostics and therapeutics for autoimmune system conditions
US10347367B2 (en) 2014-10-21 2019-07-09 uBiome, Inc. Method and system for microbiome-derived characterization, diagnostics, and therapeutics for cardiovascular disease conditions
US10346588B2 (en) 2014-10-21 2019-07-09 uBiome, Inc. Method and system for microbiome-derived diagnostics and therapeutics
US10347362B2 (en) 2014-10-21 2019-07-09 uBiome, Inc. Method and system for microbiome-derived diagnostics and therapeutics for endocrine system conditions
US10347379B2 (en) 2014-10-21 2019-07-09 uBiome, Inc. Method and system for microbiome-derived characterization, diagnostics and therapeutics for cutaneous conditions
US10358682B2 (en) 2014-10-21 2019-07-23 uBiome, Inc. Method and system for microbiome-derived diagnostics and therapeutics for conditions associated with microbiome functional features
US10360347B2 (en) 2014-10-21 2019-07-23 uBiome, Inc. Method and system for microbiome-derived diagnostics and therapeutics for neurological health issues
US10366793B2 (en) 2014-10-21 2019-07-30 uBiome, Inc. Method and system for characterizing microorganism-related conditions
US10381112B2 (en) 2014-10-21 2019-08-13 uBiome, Inc. Method and system for characterizing allergy-related conditions associated with microorganisms
US10388407B2 (en) 2014-10-21 2019-08-20 uBiome, Inc. Method and system for characterizing a headache-related condition
US10383519B2 (en) 2014-10-21 2019-08-20 uBiome, Inc. Method and system for microbiome-derived characterization, diagnostics and therapeutics for conditions associated with functional features
US20190381591A1 (en) * 2016-05-31 2019-12-19 Endress+Hauser SE+Co. KG Manufacturing line for soldering
US10786195B2 (en) 2014-10-21 2020-09-29 Psomagen, Inc. Method and system for microbiome-derived diagnostics and therapeutics for conditions associated with mircrobiome taxonomic features
US10790060B2 (en) 2014-10-21 2020-09-29 Psomagen, Inc. Method and system for microbiome-derived diagnostics and therapeutics for mental health associated conditions
US10789334B2 (en) 2014-10-21 2020-09-29 Psomagen, Inc. Method and system for microbial pharmacogenomics
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JP2008246515A (ja) * 2007-03-29 2008-10-16 Tamura Seisakusho Co Ltd リフロー装置
CN101868317B (zh) * 2007-08-08 2013-04-24 千住金属工业株式会社 回流炉
JP5161628B2 (ja) * 2008-03-28 2013-03-13 株式会社日本サーモエナー 給湯システム
JP5192875B2 (ja) * 2008-03-28 2013-05-08 株式会社日本サーモエナー 給湯システム
JP2009285719A (ja) * 2008-05-30 2009-12-10 Nippon Dennetsu Co Ltd フラックス塗布装置
JP6677844B1 (ja) * 2019-04-26 2020-04-08 株式会社オリジン 加熱装置及びはんだ接合済対象物の製造方法

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US10383519B2 (en) 2014-10-21 2019-08-20 uBiome, Inc. Method and system for microbiome-derived characterization, diagnostics and therapeutics for conditions associated with functional features
US10347368B2 (en) 2014-10-21 2019-07-09 uBiome, Inc. Method and system for microbiome-derived characterization, diagnostics, and therapeutics for cardiovascular disease conditions
US10346588B2 (en) 2014-10-21 2019-07-09 uBiome, Inc. Method and system for microbiome-derived diagnostics and therapeutics
US10347366B2 (en) 2014-10-21 2019-07-09 uBiome, Inc. Method and system for microbiome-derived characterization, diagnostics, and therapeutics for cardiovascular disease conditions
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US10347379B2 (en) 2014-10-21 2019-07-09 uBiome, Inc. Method and system for microbiome-derived characterization, diagnostics and therapeutics for cutaneous conditions
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US10360346B2 (en) 2014-10-21 2019-07-23 uBiome, Inc. Method and system for microbiome-derived diagnostics
US10902938B2 (en) 2014-10-21 2021-01-26 Psomagen, Inc. Method and system for microbiome-derived diagnostics and therapeutics for endocrine system conditions
US10360347B2 (en) 2014-10-21 2019-07-23 uBiome, Inc. Method and system for microbiome-derived diagnostics and therapeutics for neurological health issues
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US10366793B2 (en) 2014-10-21 2019-07-30 uBiome, Inc. Method and system for characterizing microorganism-related conditions
US10380325B2 (en) 2014-10-21 2019-08-13 uBiome, Inc. Method and system for microbiome-derived diagnostics and therapeutics
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