Kuga
Shigenori Kuga, Beijing CN
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20140299019 | Method for Preparing Cellulose Nanofiber Capable of Being Stably Dispersed - A method for preparing stably dispersed cellulose nanofibers comprises the following steps: 1) mixing cellulose and an organic solvent, the percentage of the cellulose being 1% to 15% in weight; 2) adding an esterification agent into the resultant mixture of step 1), the molar ratio of the esterification agent to the cellulose being from 1:0.1 to 4; and 3) physically breaking the resultant mixture of step 2) until a suspension liquid with stably dispersed cellulose nanofibers of 2-1000 nm in diameter and 10-100 μm in length is obtained, an esterification reaction of hydroxyl group(s) on the surface of cellulose fibers occurring at the time of the breaking. Also disclosed are dispersed cellulose nanofibers with improved compatibility to the matrix than the untreated cellulose and an improved strength of the composite materials. | 10-09-2014 |
Shinpei Kuga, Cambridge, MA US
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20120023094 | METHODS, SYSTEMS, AND SOFTWARE FOR AUTOMATED GROWTH OF INTELLIGENT ON-LINE COMMUNITIES - To address problems related to interface differences and disunity among on-line services, such as newsgroups message boards and forums, the present inventors devised systems, methods, and software for automating the posting and retrieval of content across different on-line services as well as encouraging growth of active on-line communities. One exemplary system includes a posting module, a retrieval module, and a web server. The posting module allows users to create and initiate data postings that are sent automatically to several newsgroups, message boards, and/or other on-line information sources. The retrieval module automatically retrieves replies to the postings at each of the on-line sources and presents them through the webserver for user review and further reply, eliminating the need for users to repeatedly visit posting sites in search of reply messages. In addition to the retrieved replies, the retrieval module automatically finds and retrieves content based on stored search or fitness criteria, ultimately enabling its integration into the content of one or more websites or databases for convenient user access. | 01-26-2012 |
Yasuo Kuga, Seattle, WA US
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20080197208 | MEMBRANE ACTUATOR BASED ON FERROMAGNETIC SHAPE MEMORY ALLOY COMPOSITE FOR SYNTHETIC JET ACTUATOR - A membrane actuator includes a magnetically actuatable membrane and a magnetic trigger. The membrane includes a shape memory alloy (SMA), and the magnetic trigger is configured to induce a martensitic transformation in the SMA, to produce a larger force than would be achievable with non-SMA-based materials. Such a membrane actuator can be beneficially incorporated into a wide variety of devices, including fluid pumps, shock absorbing systems, and synthetic jet producing devices for use in an aircraft. The membrane/diaphragm can be formed from a ferromagnetic SMA, or a ferromagnetic material can be coupled with an SMA such that the SMA and the ferromagnetic material move together. A hybrid magnetic trigger, including a permanent magnet and an electromagnet, is preferably used for the magnetic trigger, as hybrid magnetic triggers are easy to control, and produce larger magnetic gradients than permanent magnets or electromagnets alone. | 08-21-2008 |
20090165569 | Tactile sensors - An electroactive polymer is used to produce a tactile sensor. The electroactive polymer (EAP) includes a sheet of an ion-exchange membrane having opposite surfaces on which are plated gold electrodes. The EAP is formed to have a dome-shape with a plurality of sensing electrodes circumferentially disposed around an outer surface of the dome. A flexible polymer underlying the EAP supports it and prevents a force applied to the tactile sensor from inverting the dome. The sensor electrodes produce separate output signals indicative of different vector components of an applied force acting on the tactile sensor, so that a direction of the force can be determined. Vias provided in the electrodes are electrically coupled to a flexible circuit that conveys the output signals externally from the sensing electrodes for use and further processing. A plurality of the tactile sensors can be formed as an array on an ion-exchange membrane. | 07-02-2009 |
Yuichiro Kuga, Chung Ho City TW
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20090147136 | TV Card with Power-Switching Function - A TV card with power-switching function is provided. The TV card comprises a TV card chip module, a power-switching module and a connecting interface. The power switching module is connected to the TV card chip module to transfer or block a power to the TV card chip module; the connecting interface is connected to the power-switching module and a host, wherein the host provides the power to the power-switching module through the connecting interface; the connecting interface further comprises a reserved pin to receive and transfer a switching signal to the power-switching module through the connecting interface to enable the power-switching module to transfer or block the power to the TV card chip module. | 06-11-2009 |
Yuichiro Kuga, Taipei TW
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20080231495 | MULTIPURPOSE PERIPHERAL DEVICE FOR RECEIVING SIGNALS - A multipurpose peripheral device is operated with a portable electronic device. The portable electronic device includes a bus connection port. The multipurpose peripheral device includes a circuit carrier, at least two types of wireless signal-receiving/processing modules and a bus bridge module. The wireless signal-receiving/processing modules are disposed on the circuit carrier for receiving and processing corresponding wireless signals, thereby generating first signals and second signals. The bus bridge module is disposed on the circuit carrier and electrically connected to the wireless signal-receiving/processing modules and can be coupled to the bus connection port. The first signals and the second signals are transmitted from the wireless signal-receiving/processing modules to the portable electronic device through the bus bridge module and the bus connection port. | 09-25-2008 |