Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7744802 | Dielectric film with low coefficient of thermal expansion (CTE) using liquid crystalline resin An embodiment of the present invention is a technique to provide a dielectric film material with a controllable coefficient of thermal expansion (CTE). A first compound containing a first liquid crystalline component is formed. The first compound is cast into a firs... | 06/29/2010 |
| 7608215 | Method of manufacturing a piezoelectric ceramic composition There are provided steps of polarizing a ceramic composition including a perovskite compound containing Pb, Zr, Ti and Mn as main components and a heat treatment step for keeping the polarized ceramic composition within a temperature range lower than Tc (Tc denoting... | 10/27/2009 |
| 7540991 | Ion conductive polymer electrolyte membrane and production method for the same The present invention provides an electrolyte membrane formed of an ion conductive composition. Said composition contains a liquid crystalline polymer having an ionic dissociative group. Molecular chains of the liquid crystalline polymer are orientated in a specific... | 06/02/2009 |
| 7266257 | Reducing crosstalk in free-space optical communications An optical transmitter includes a modulator, a dispersion adjustment module, and an optical amplifier. The optical transmitter is configured to transmit optical pulses over a free-space optical communication channel. The modulator is configured to produce an optical... | 09/04/2007 |
| 7247316 | Compositions and methods for treating lymphoma This invention provides methods for treating neoplasias in a mammal. In particular, the invention provides methods for treating various types of lymphomas, including relapsed forms of non-Hodgkin's Lymphoma. These methods involve the administration of liposome-encap... | 07/24/2007 |
| 7202691 | Non-contact method for acquiring charge-voltage data on miniature test areas of semiconductor product wafers A non-contact method is described for acquiring the accurate charge-voltage data on miniature test sites of semiconductor wafer wherein the test sites are smaller than 100 μm times 100 μm. The method includes recognizing the designated test site, properly aligning... | 04/10/2007 |
| 7191058 | Notification systems and methods enabling user entry of notification trigger information based upon monitored mobile vehicle location A vehicle monitoring and notification system includes a mapping application and a data manager. The mapping application receives data identifying a particular location and automatically translates this data into a set of location values. The mapping application then... | 03/13/2007 |
| 7119716 | Response systems and methods for notification systems for modifying future notifications Response systems and methods are disclosed for communications in connection with a computer-based notification system and a personal communications device (e.g., telephone, pager, computer, PDA, etc.) associated with a party. One such representative response method,... | 10/10/2006 |
| 7030781 | Notification system and method that informs a party of vehicle delay An advance notification system and method notifies passengers of the impending arrival of a transportation vehicle, for example, a school bus, at a particular vehicle stop. The system generally includes an on-board vehicle control unit for each vehicle and a base st... | 04/18/2006 |
| 7015254 | Description of an inorganic polymer “electret ”in a colloidal state along with the method of generating and applications The present invention includes an apparatus for generating an inorganic polymer electret in a colloidal state, the inorganic electret in a colloidal state itself, and applications for the inorganic electret in a colloidal state. The invention includes a method for g... | 03/21/2006 |
| 6998223 | Optical wavelength converting device and process for producing the same A photosensitive resist layer is formed on one surface of a single-polarized ferroelectric substance having nonlinear optical effects. The resist layer has properties such that, when light is irradiated to the resist layer, only exposed areas of the resist layer or ... | 02/14/2006 |
| 6904359 | Notification systems and methods with user-definable notifications based upon occurance of events Methods and systems are disclosed for a vehicle status reporting system for allowing a user to define when a user will receive a vehicle status report about the status of a mobile vehicle, in relation to a location, for establishing a communication link between the ... | 06/07/2005 |
| 6783574 | Electret filter media and filtering masks that contain electret filter media Electret filter media comprising a nonwoven web of thermoplastic nonconductive microfibers having trapped charge, said charge provided by (1) subjecting the nonwoven web to a corona treatment, followed by (2) impingement of jets of water or a stream of water droplet... | 08/31/2004 |
| 6759792 | Polarization method of a multi-layered piezoelectric body In a polarization method of the multi-layered piezoelectric body in which a plurality of piezoelectric layers and a plurality of internal electrodes are alternately laminated and adjacent piezoelectric layers are polarized in the thickness direction such that the po... | 07/06/2004 |
| 6750592 | Surface acoustic wave filter and surface acoustic wave filter apparatus The present invention relates to a surface acoustic wave filter in which a plurality of pairs of comb electrode patterns are formed on an upper surface of a chip substrate made of a piezoelectric material. The surface acoustic wave filter includes a high-resistance ... | 06/15/2004 |
| 6642341 | Molded articles having improved flex modulus and impact strength and a process for the production thereof Molded polyurethane articles having improved flex modulus and impact strength are produced by subjecting a polyurethane-forming reaction mixture which has been introduced into a mold to a static electric field. The static electric field must have a field ... | 11/04/2003 |
| 6628042 | Polarizing device and method In order to polarize a piezoelectric material in high-temperature gas, a temperature-raising portion raises the temperature of the piezoelectric material to a temperature required to polarize the piezoelectric material. A constant-temperature bath has an ... | 09/30/2003 |
| 6602311 | Method and apparatus for spinning a web of mixed fibers, and products produced therefrom A fiber spinning device and process for manufacturing a web of fibers including a homogeneous mixture of fibers of different characteristics. Monocomponent fibers of different polymers can be extruded side-by-side from the same die system. Sheath/core bic... | 08/05/2003 |
| 6593681 | Polarization apparatus and polarization method of coaxial flexible piezoelectric cable A polarization apparatus is provided wherein a piezoelectric body tube 3 is wound around a first rotation drum 5 and a second rotation drum 6 and a coaxial flexible piezoelectric body 2 is polarized while the piezoelectric body tube 3 is wound. According ... | 07/15/2003 |
| 6521166 | Method of polarization-treating piezoelectric body A DC voltage is applied to a piezoelectric body for polarization treatment in the air and in an atmosphere with a temperature equal to or higher than an aging temperature, and then, the piezoelectric body is aged at the aging temperature. The polarization... | 02/18/2003 |
| 6464925 | Method of polarization-treating piezoelectric body A method of polarization-treating a piezoelectric body, which is constructed such that current flows through the piezoelectric body in response to application of a DC voltage to the piezoelectric body, includes the steps of measuring current flowing throu... | 10/15/2002 |
| 6414089 | Method of manufacturing polymer films having second order non-linear optical properties, polymer films, and non-linear optical element A method of manufacturing a polymer film having second order non-linear optical properties which has excellent stability of orientated molecules and does not become disorientated, and a polymer film and a non-linear optical element are provided. A polymer... | 07/02/2002 |
| 6406657 | Method and apparatus for making a fibrous electret web using a wetting liquid and an aqueous polar liquid A method for imparting an electrostatic charge to a nonwoven fibrous web 20. The fibrous web 20 is wetted with a wetting liquid 24, followed by being saturated with an aqueous polar liquid 30 and drying 31. The resulting dried product is an electret artic... | 06/18/2002 |
| 6403012 | Method of polarization-treating piezoelectric material In a method of polarization-treating a piezoelectric material, the maximum polarization degree Ɗf180max achieved by 180° rotation is determined. A residual polarization degree Ɗf as a target value and the maximum polarization degree Ɗf... | 06/11/2002 |
| 6398847 | Method of removing contaminants from an aerosol using a new electret article An electret is described that includes a surface modified polymeric article having surface fluorination produced by fluorinating the polymeric article.... | 06/04/2002 |
| 6387295 | Alkali metal-containing niobate-based piezoelectric material composition and a method for producing the same An alkali metal-containing niobate-based piezoelectric material composition comprises a solid solution represented by a composition formula (ANbO3) (A: alkali metal), and at least one additive selected from Cu, Li and Ta.... | 05/14/2002 |
| 6365088 | Electret treatment of high loft and low density nonwoven webs The process of forming an electret nonwoven web, the process including the steps of providing a nonwoven web, generating a DC corona discharge from an apparatus including an anode electrically configured as a parallel device, and subjecting the web to DC ... | 04/02/2002 |
| 6168746 | Injection molding of ferroelectric articles A method for injection molding fine particulate ceramic ferroelectric materials to form an article such as ink jet printhead includes the steps of spray drying fine particulate ceramic ferroelectric material to form agglomerate material; mixing the spray ... | 01/02/2001 |
| 6156255 | Electric field domain patterning A method of patterning domains within a body of a ferroelectric material includes the application of an electric field thereto via spaced conductors. Prior to applying the electric field to the material effects on the patterning of the existence of fringe... | 12/05/2000 |
| 6054071 | Poled electrets for gyricon-based electric-paper displays Twisting balls (10) for an electric-paper display are formed from a polarizable material and encapsulated in a protective shell (12). The balls (10) are disposed between first and second electrodes (14, 16) which generate an electric field. The electric f... | 04/25/2000 |
| 6013221 | Electric field domain patterning A method of domain patterning a body of ferroelectric material is disclosed. This method includes patterning the surface of the material with conducting strips for applying an electric field of desired configuration to said body and covering the conductiv... | 01/11/2000 |
| 6001299 | Process and apparatus for manufacturing an electret article A process for electret treatment is described, involving (1) placing the dielectric article between a combination of a first ion-repulsive electrode and a first ion-attractive electrode and between a combination of a second ion-repulsive electrode and a second... | 12/14/1999 |
| 5964926 | Gas born particulate filter and method of making Disclosed is an improved filter formed from a non-dielectric material which has been coated with a dielectric material and electret treated by, for example, DC corona discharge treatment. Also disclosed is a method for the formation of the filter.... | 10/12/1999 |
| 5886070 | Production method for anisotropic resin-bonded magnets The present invention offers a production method for anisotropic resin-bonded magnets with precise dimensions in high productivity. It comprises the aligning step in which the preform is preliminary compression-molded in the preforming molding die 22 in t... | 03/23/1999 |
| 5800767 | Electric field domain patterning A method of domain patterning a body of ferroelectric material. The method includes the steps of adhering spaced conducting strips to a surface of said body; covering portions of said surface of said body between said strips with material which is insulat... | 09/01/1998 |
| 5725825 | Method of producing piezoelectric element A method of producing a cylindrical piezoelectric element includes: (a) injecting the molding fluid containing calcined powder of piezoelectric material in a mold having cylindrical cavity and wire-shaped core inserted therein; (b) heating to dry the molding f... | 03/10/1998 |
| 5565717 | Devices for manufacturing electrets, and electrets obtained thereby To manufacture a thin sheet electret of small size having charge distributed in very uniform manner, even at its edges, use is made of a device comprising a grounded electrode (2) for supporting a dielectric (1) to be charged, means for generating ions (3... | 10/15/1996 |
| 5340510 | Method for making piezoelectric ceramic/polymer composite transducers A net-shape process for fabricating a fully dense ceramic preform for a piezoelectric or electrostrictive composite transducer exhibiting 1-3 or 2-2 connectivity. The process involves preparing a homogeneous, granulated, thermoplastic powder/binder mixtur... | 08/23/1994 |
| 5246637 | Method for producing electret filter A highly efficient, reliable method is provided for producing an electret filter having an excellent collection efficiency. In this method, a film containing a resin material with high molecular weight is formed and split to form split yarns. The split ya... | 09/21/1993 |
| 5230800 | Scrim inserted electrostatic fibrous filter web Provided is a nonwoven web of electrically charged fibers needle-punched to a scrim support. This web provides a filter medium having increased uniformity in pressure-drop, basis weight and filtration performance.... | 07/27/1993 |
