公开(公告)号：US11486047B2

公开(公告)日：2022-11-01

申请号：US16624993

申请日：2018-06-20

Applicant: Aalto University Foundation sr

Inventor： Mari Lundström ,  Kirsi Yliniemi ,  Petteri Halli ,  Samuli Franssila ,  Ville Jokinen ,  Joonas Heikkinen

IPC: C25C5/02 ,  C25C1/20 ,  C22B11/00 ,  C25C7/02

Abstract: The invention relates to a method of recovering Pt or Ag or Pt and Ag from a sulfate solution on an electrode. In particular, the invention concerns a method for recovering Pt or Ag or Pt and Ag from base metal bearing process solution, particularly from a hydrometallurgical sacrificial metal bearing solution containing Zn and/or Ni. In general, the method of the present invention can be used for recovery of precious metals, which are dissolvable in sulfuric acid, from sulfate media based solutions. In addition to Pt and Ag, especially Pd should be mentioned.
Deposited precious metal(s) can be recovered from the electrode or the deposition containing electrode can be used as such.

公开(公告)号：US20220311201A1

公开(公告)日：2022-09-29

申请号：US17638887

申请日：2020-08-31

Applicant: Aalto University Foundation sr

Inventor： Zhipei Sun ,  John Rönn

IPC: H01S3/063 ,  H01S3/16

Abstract: The present invention concerns a waveguide amplifier and a waveguide amplifier device comprising it. In addition, the invention concerns a method for producing such waveguide amplifier. The invention especially relates to erbium doped waveguide amplifiers having a controlled doping concentration.

公开(公告)号：US20220152711A1

公开(公告)日：2022-05-19

申请号：US17606142

申请日：2020-04-24

Applicant: Aalto University Foundation sr

Inventor： Petri KUOSMANEN ,  Raine VIITALA ,  Valtteri VAINIO

IPC: B23B31/36

Abstract: Fastening an object onto a lathe, such that the location of the centre of rotation of the object may be adjusted relative to the centre of the lathe axis, wherein the centre of rotation of the object relative to the centre of the lathe may be displaced steplessly and biaxially, according to a predetermined calculation, without removing the object from the chuck.

公开(公告)号：US20220010077A1

公开(公告)日：2022-01-13

申请号：US17298622

申请日：2019-11-29

Applicant: Aalto University Foundation sr

Inventor： Monika Österberg ,  Mika Sipponen ,  Mauri Kostiainen ,  Laura Äkräs ,  Guillaume Rivière ,  Xue Zhang

IPC: C08J3/07 ,  C08L97/00 ,  B01F17/00

Abstract: Method of preparing a dispersion of colloidal lignin particles by providing a solution of lignin in a mixture of an organic solvent for lignin and a non-solvent for lignin having a ratio of non-solvent to solvent; and increasing the ratio of the non-solvent to the solvent to produce an aqueous dispersion of colloidal lignin particles. The dispersions are stable and the colloidal lignin particles are useful for many applications such as rheology modifiers in three-dimensional printing of hydrogels, or in purification systems such as filters, and packed columns, and as flocculants.

公开(公告)号：US20210325492A1

公开(公告)日：2021-10-21

申请号：US17272060

申请日：2019-08-29

Applicant: AALTO UNIVERSITY FOUNDATION SR

Inventor： Cornelis ZEVENHOVEN ,  Iiro LEHTO

IPC: G01R33/3815 ,  H01F6/06 ,  G01R33/44 ,  G01R33/565 ,  G01R33/34

Abstract: The invention relates to a device for magnetic measurements and/or magnetic imaging such as an MRI device or a hybrid MEG-MRI device. The device comprises an array of one or more detectors for the magnetic signal and one or more coils for producing preparatory magnetic field pulses. The device further comprises means to drive current pulses through the said coils, wherein at least one of the coils comprises material that is Type-II superconducting at the operating temperature. The device is configured to cancel out at least part of the field generated by the remanent magnetization after a current pulse by the shape of the current pulse and/or the geometrically balanced design of the coil.

公开(公告)号：US20210181391A1

公开(公告)日：2021-06-17

申请号：US16761813

申请日：2018-11-06

Applicant: Aalto University Foundation sr ,  Helsingin yliopisto

Inventor： Nagarajan Subramaniyam ,  Markku SOPANEN ,  Elina IKONEN ,  Antti ISOMÄKI ,  Simon PFISTERER

IPC: G02B5/18 ,  G02B5/08 ,  G02B27/42

Abstract: A field-enhancing device includes at least one metal layer or a metal grating consisting of metal stripes or a dielectric grating. Usually the device is constructed on some substrate. The adhesive layer is advantageous when the next layer is metallic but is not needed with dielectric layers. The next layers to be constructed form a mirror structure that can also be omitted for simple field-enhancing device constructs. The mirror structure can be either a metal mirror structure or a distributed Bragg reflector structure (DBR). The next layer is the thin metal layer. This layer can be covered with a 1-D metal grating consisting of metal stripes or with a dielectric grating having similar geometry. The structure can also be fabricated without metals when dielectric grating is used as the field-enhancing part. Finally, a protective layer can be added on top of the structure.

公开(公告)号：US20210039134A1

公开(公告)日：2021-02-11

申请号：US16963878

申请日：2019-01-16

Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY ,  AALTO UNIVERSITY FOUNDATION SR

Inventor： Jaakko PERE ,  Vesa KUNNARI ,  Matti KAIRI ,  Pekka AHTILA

IPC: B05D7/10 ,  C09D101/02

Abstract: Disclosed is a method for treating wood veneer, including the steps of providing at least one sheet of wood veneer; coating at least one side of the sheet of wood veneer with an aqueous coating composition including nanocellulose to obtain a coated sheet of wood veneer; and drying the coated sheet using compression pressure and heat. Also disclosed is a coated wood veneer including a sheet of wood veneer and a coating including nanocellulose arranged on at least one surface of the sheet.

公开(公告)号：US20200240011A1

公开(公告)日：2020-07-30

申请号：US16650159

申请日：2018-10-01

Applicant: AALTO UNIVERSITY FOUNDATION SR

Inventor： Christoffer KAUPPINEN ,  Kirill ISAKOV ,  Sami FRANSSILA

IPC: C23C16/40 ,  C23C16/455 ,  C23C16/56 ,  B05D1/00

Abstract: The object of the invention is to provide an improved coating. The coating comprises a high transmittance antireflection layer of a grass-like alumina made by atomic layer deposition technique and subsequent water immersion. The coating also comprises at least one coating layer on the layer of a grass-like alumina, an uppermost coating layer being a low-surface energy coating. The coating is also hydrophobic and transparent.

公开(公告)号：US10000614B2

公开(公告)日：2018-06-19

申请号：US14353775

申请日：2012-10-23

Applicant: Teknologian tutkimuskeskus VTT Oy ,  Aalto University Foundation sr

Inventor： Tekla Tammelin ,  Ulla Hippi ,  Arto Salminen

IPC: C08J5/18

CPC classification number: C08J5/18 ,  B32B5/02 ,  B32B2262/062 ,  C08J2301/02 ,  C09D101/02 ,  Y10T428/269 ,  Y10T428/31971

Abstract: The present invention concerns a method of preparing a film of nanofibrillated cellulose (NFC) on at least one surface of a support material, wherein the film is applied and spread directly onto a surface of the plastic support material in the form of a suspension of nanofibrillated cellulose, whereby the nanofibrillated cellulose forms a film. Further, the invention concerns a structure containing or consisting of a film of nanofibrillated cellulose prepared using said method.