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Saint Paul, MN, United States

The 3M Company, formerly known as the Minnesota Mining and Manufacturing Company, is an American multinational conglomerate corporation based in St. Paul, Minnesota. 3M headquarters are in the St. Paul suburb of Maplewood, Minnesota.With $30 billion in sales, 3M employs 88,000 people worldwide and produces more than 55,000 products, including: adhesives, abrasives, laminates, passive fire protection, dental and orthodontic products, electronic materials, medical products, car-care products , electronic circuits, and optical films. 3M has operations in more than 65 countries including 29 international companies with manufacturing operations and 35 companies with laboratories. 3M products are available for purchase through distributors and retailers in more than 200 countries, and online directly from the company. Wikipedia.

This disclosure describes techniques for creating and manipulating software notes representative of physical notes. For example, techniques are described for recognizing physical notes present within a physical environment, capturing information therefrom and creating corresponding digital representations of the physical notes, referred to herein as digital notes or software-based notes. At least some aspects of the present disclosure feature system and methods for note recognition using color classification. The system receives a visual representation of a scene having one or more notes, where each note has a color. The system generates indicators indicative of color classes of pixels in the visual representation. The system further determines a general boundary of one of the notes based on the indicators.

A structure comprising at least one inorganic layer comprising inorganic materials suitable for use in a pollution control device. A friction-inducing material is disposed on at least one side of the inorganic layer. The deposited friction-inducing material defines a higher friction area exhibiting a static coefficient of friction higher than that of the inorganic materials. A lower friction layer is disposed so as to cover at least a portion of the higher friction area and define an exposed surface area of the structure. The exposed surface area exhibits a lower static coefficient of friction than that of the higher friction area. The lower friction layer no longer covers a substantial portion of the higher friction area, after the pollution control device is assembled.

3M | Date: 2016-01-04

A building construction assembly for installation on a roof deck including a base layer and a channel structure coupled to the base layer and defining a plurality of channels. In an embodiment, the plurality of channels include a first airflow channel and second airflow channel extending in parallel through the channel structure. The plurality of channels further includes a venting channel between the first and second airflow channels and the base layer. The channel structure defines one or more apertures between the venting channel and each of the first and second airflow channels configured to allow airflow from the first and second airflow channels into the venting channel. The base layer defines one or more exit orifices in airflow communication with the venting channel and configured such that air in the venting channel exits the building construction assembly through the one or more exit orifices.

3M | Date: 2016-01-04

A barrier film having a substrate, a base polymer layer applied to the substrate, an oxide layer applied to the base polymer layer, and a top coat polymer layer applied to the oxide layer. An optional inorganic layer can be applied over the top coat polymer layer. The top coat polymer includes a silane and an acrylate co-deposited to form the top coat layer. The use of a silane co-deposited with an acrylate to form the top coat layer of the barrier films provide for enhanced resistance to moisture and improved peel strength adhesion of the top coat layer to the underlying barrier stack layers.

A method and apparatus for objectively assessing acoustical performance of an in-ear device having a passageway extending there through use a dual microphone probe that removably engages the passageway. The acoustical performance of the in-ear device is performed with the in-ear device inserted into the ear canal of the user and a reference sound source. A clip holding the probe in an acoustic near field of the sound source permits real time calibration thereof. The method and apparatus allow on-site and in-situ measurement of a predicted personal attenuation rating of the device, a subject-fit re-insertion test, an acoustic seal test, a rating test, a stability and reliability test, as well as a protection test of the device with an assessment of a filtered predicted exposure level at the ear for a specific noise exposure level. The apparatus may be simply housed along with the sound source for in-field evaluation tests.

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