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Fukuba
Daniel Fukuba, Palo Alto, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20110201238 | Electric Powered Surfboard Propulsion and Control Systems - Practical electric-powered propulsion systems, associated operator-control systems, and modification methods enable conventional surfboards (and similar small watercraft) to be converted for water-jet propulsion. Wireless controls are integrated with wearable marine accessories such as modified neoprene or fabric gloves, armbands, wristbands, hand straps, or gauntlets. Safely immersible, wet-swappable high-power battery packs facilitate extended use of electric propulsion in surf. Compact integrated electronic control units incorporate motor controllers, wireless receivers, and control logic. On-board power, propulsion, and control components are positioned and installed to avoid disrupting the shape of the watercraft body so as to minimize added hydrodynamic drag and perceived differences from a traditional unpowered version of the watercraft in appearance, balance, or performance. Components are designed to facilitate efficient installation using construction techniques already in widespread use among manufacturers and customizers of the analogous unpowered watercraft. | 08-18-2011 |
Ken Fukuba, Saitama Pref. JP
| Patent application number | Description | Published |
|---|---|---|
| 20100329657 | Method and Apparatus for Imaging a Moving Object - A relatively rapidly moving object is imaged with a sensor incorporating a rolling electronic shutter, while using flash illumination which is comparable to or dimmer than ambient light. This is achieved by utilizing a physical shutter between the object and sensor which is synchronized to the flash. Preferably, the physical shutter is also operated so as to be open for a time interval which is coextensive with the presence of the flash. Preferably, an optical mechanism is provided between the object and sensor which causes the image to be focused when the light is flashed and blurred otherwise. Preferably, an optical filter is positioned between the object and sensor, and this filter is constructed to transmit to the CMOS sensor light at the wavelength of the flashing light source but to attenuate ambient light. | 12-30-2010 |
Tetsuya Fukuba, Osaka-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20090022619 | Steel plate for submerged arc welding - A steel plate for submerged arc welding having good low temperature toughness at a fusion line vicinity part and a boundary with the base material in HAZ as well as at the base material and the weld metal is provided. The steel plate for submerged arc welding according to the invention contains, by mass, 0.03% to 0.09% C, 1.5% to 2.5% Mn, 0.005% to 0.025% Nb, 0.005% to 0.02% Ti, 0.01% to 0.06% Al, at most 0.0005% B, 0.001% to 0.008% N, at most 0.015% P, at most 0.015% S, and at most 0.006% O, and the balance consists of Fe and impurities. Therefore, the steel plate according to the present invention has good low temperature toughness not only at the fusion line vicinity part and the boundary with a base material in the HAZ but also in the base material and weld metal. | 01-22-2009 |
Tetsuya Fukuba, Kashima-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20100129680 | UOE STEEL PIPE AND A METHOD FOR ITS MANUFACTURE - UOE steel pipe which has a tensile strength of at least 900 MPa, which does not develop delayed hydrogen cracking of a weld or fracture of the weld during pipe expansion, and which has a weld and a heat affected zone having excellent toughness is provided. The tensile strength of a weld formed on a base metal having a tensile strength of at least 900 MPa is adjusted to be in the range of 95-110% of the tensile strength of the base metal, the oxygen content of the weld metal in the weld is made at most 0.035 mass %, and the weld is preheated to the range of 75-250° C. before carrying out welding from the outer side. | 05-27-2010 |
Tomoaki Fukuba, Niihama-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20090062415 | METHODS OF PRODUCING RIGID POLYURETHANE FOAMS - Methods comprising: providing an aromatic polyisocyanate and a polyol; and reacting the aromatic polyisocyanate and the polyol in the presence of a blowing agent and a catalyst to form a rigid polyurethane foam; wherein the blowing agent comprises water and a hydrocarbon having 3 to 8 carbon atoms; and wherein the polyol comprises a mixture of two or more polyether polyols according to formula (1): | 03-05-2009 |
Tomoaki Fukuba, Ehime JP
| Patent application number | Description | Published |
|---|---|---|
| 20100120992 | PROCESS FOR PREPARING MODIFIED POLYISOCYANATE - Purpose: A process for preparing a liquid organic isocyanate having a carbodiimide group and/or an uretonimine group, excellent in storage stability. Solution: In a process for preparing a modified polyisocyanate by carbodiimidizing an organic polyisocyanate in the presence of a phospholine-based catalyst, silicon dioxide particles having a specific surface area of at least 400 m | 05-13-2010 |
Yoshinori Fukuba, Kanagawa JP
| Patent application number | Description | Published |
|---|---|---|
| 20110180898 | SEMICONDUCTOR DEVICE - According to the embodiments, a core block is formed on a semiconductor chip, and is constructed of an integrated circuit that can operate independently. A power-supply switch is formed on the semiconductor chip, and connects or disconnects the core block to or from a power line. A capacitor is formed on the semiconductor chip, and is connected to the power line in parallel to the core block. A selection switch is formed on the semiconductor chip, and connects or disconnects the capacitor to or from the power line. | 07-28-2011 |