1
Masakazu Tanaka, Masahiro Fukui: Layout designing apparatus for integrated circuit, transistor size determining apparatus, circuit characteristic evaluating method, and transistor size determining method. Matsushita Electric Industrial, McDermott Will & Emery, May 21, 2002: US06393601 (184 worldwide citation)

The present invention realizes the optimization of a transistor size with higher precision and in a shorter time, in designing a layout for an integrated circuit. A diffusion sharing estimation section estimates a diffusion-sharing region in the layout of the integrated circuit based on circuit data ...


2
Masakazu Tanaka, Masahiro Fukui: Method for design of partial circuit. Matsushita Electric Industrial, Stevens Davis Miller & Mosher, April 22, 2003: US06553544 (182 worldwide citation)

There is no conventional method for precisely estimating under what external conditions each partial circuit, such as a library cell, is utilized in an actual integrated circuit at the time of designing the partial circuit. Therefore, by estimating the external conditions of a partial circuit when u ...


3
Masakazu Tanaka, Satoru Murata, Susumu Kashiwabara, Ken Murayama: Gas-permeable material with excellent compatibility with blood. Toyo Boseki Kabushiki Kaisha, Wegner Cantor Mueller & Player, July 7, 1992: US05128408 (70 worldwide citation)

A gas-permeable material with excellent compatibility with blood comprising polyurethane, polyurethaneurea, or the derivatives thereof is provided. The polyurethane or polyurethaneurea is obtained from a composition that comprises diisocyanate; polysiloxane containing terminal hydroxyl groups; and p ...


4
Hideyuki Yokota, Masakazu Tanaka: Composition compatible with blood. Toyo Boseki Kabushiki Kaisha, Leydig Voit & Mayer, July 30, 1996: US05541305 (61 worldwide citation)

A material compatible with blood obtained by heparinizing a polymer having quarternary ammonium groups with an alkali metal salt or an alkaline earth metal salt of heparin or the analog by ion exchange is provided. The equivalent ratio (M/S) of alkali metal atoms or alkaline earth metal atoms (M) in ...


5
Shigeji Konagaya, Hideto Ohashi, Akito Hamano, Masahiro Seko, Masakazu Tanaka: Antibacterial composition and antibacterial laminate. Toyo Boseki Kabushiki Kaisha, Kenyon & Kenyon, January 11, 2000: US06013275 (40 worldwide citation)

Since an inorganic and/or organic antibacterial agent and a hydrophilic substance are used in combination in this invention to produce an antibacterial composition, the intrinsic antibacterial activity of the inorganic or organic antibacterial agent is markedly increased, so that the antibacterial a ...


6
Hideyuki Yokota, Masakazu Tanaka, Masahiro Seko, Noriko Monden, Susumu Arimori, Shigeji Konagaya: Organic solvent-soluble mucopolysaccharide, antibacterial antithrombogenic composition and medical material. Toyo Boseki Kabushiki Kaisha, Leydig Voit & Mayer, July 21, 1998: US05783570 (31 worldwide citation)

The present invention relates to an organic solvent-soluble mucopolysaccharide consisting of an ionic complex of at least one mucopolysaccharide (preferably heparin or heparin derivative) and a quaternary phosphonium, an antibacterial antithrombogenic composition comprising said organic solvent-solu ...


7
Hiroshi Mori, Masakazu Tanaka, Mamoru Mabuchi, Makoto Saito: Exhaust gas purification apparatus for internal combustion engine. Nippondenso, Cushman Darby & Cushman, December 31, 1996: US05589143 (22 worldwide citation)

An exhaust gas purification apparatus has a catalyst unit provided in an exhaust pipe of an engine and an absorbent provided downstream of the catalyst unit. When the engine is in a cool state, HC emitted from the engine is absorbed by the absorbent. After the engine is warmed up, the absorbed HC is ...


8
Masakazu Tanaka, Hiroshi Mori, Mamoru Mabuchi: Exhaust-gas purification device for an internal combustion engine or the like. Nippondenso, Cushman Darby & Cushman, May 2, 1995: US05410875 (18 worldwide citation)

An exhaust-gas purification device for an internal combustion engine or the like which can effectively purify hydrocarbon (HC) among the toxic components of the exhaust-gas emitted by the engine or the like even when the temperature of said exhaust-gas is relatively low, and an exhaust-gas purificat ...


9
Masakazu Tanaka, Kinji Hodaira, Tatsuo Sakai, Hiroyuki Usami: Engine exhaust gas purifying system. Denso Corporation, Pillsbury Madison & Sutro, January 11, 2000: US06012284 (18 worldwide citation)

Exhaust gas is caused to flow through a bypass passage during an adsorption mode. At this time, an adsorbing member adsorbs harmful components, e.g. HC, of the exhaust gas. Also, exhaust gas is caused to flow through the bypass passage to thermally desorb the harmful component held at the adsorbing ...


10
Hiroyuki Usami, Masakazu Tanaka, Hiroshi Mori, Mamoru Mabuchi, Kinji Hodaira, Tatsuo Sakai: Change-over valve unit for switching exhaust gas passages and exhaust gas purifying system. Nippondenso, Cushman Darby & Cushman IP Group of Pillsbury Madison & Sutro, June 9, 1998: US05761902 (13 worldwide citation)

A change-over valve unit has a change-over valve for switching a bypass passage and an exhausting passage disposed in parallel therewith. An adsorbent is disposed in the bypass passage to adsorb exhaust components. An actuator of the change-over valve is isolated from an adsorption cylinder by a ped ...