1
Hiroyasu Ozaki, Takayuki Ito: Zoom lens system. Asahi Kogaku Kogyo Kabushiki Kaisha, Greenblum & Bernstein, December 25, 2001: US06333823 (24 worldwide citation)

A zoom lens system includes a plurality of lens groups, wherein a deflector which deflects the optical axis of said zoom lens system is positioned between lens groups which are made moveable upon zooming.


2
Hiroyasu Ozaki, Takayuki Ito: Zoom lens system. Asahi Kogaku Kogyo Kabushiki Kaisha, Greenblum & Bernstein, January 2, 2001: US06169635 (21 worldwide citation)

A zoom lens system includes a negative first lens group, an aperture stop, and a positive second lens group, arranged in this order from an object side. The first and second lens groups are movable along an optical axis for zooming, while the aperture stop, which is disposed between the lens groups, ...


3
Hiroyasu Ozaki: Eye direction detecting device. Asahi Kogaku Kogyo Kabushiki Kaisha, Greenblum & Bernstein, March 4, 1997: US05608489 (9 worldwide citation)

An anamorphic lens system in an eye direction detection device, applied to an observing optical system, modifies illumination light from a light source to be parallel in a lateral direction of a user's eye positioned to look through the observing optical system, dispersed in a vertical direction of ...


4
Takayuki Ito, Hiroyasu Ozaki, Takuji Hamasaki: Zoom lens system and adjusting method of same. Asahi Kogaku Kogyo Kabushiki Kaisha, Greenblum & Bernstein, May 28, 2002: US06397009 (9 worldwide citation)

A zoom lens system includes at least three lens groups, in which the distance between at least two lens groups of the at least three lens groups is varied during zooming, the zoom lens system having a first adjustment mechanism for mechanically adjusting a first lens group in the optical axis direct ...


5
Takahide Kato, Kouetsu Hikichi, Hiroto Ohmori, Masakazu Murai, Kuri Kasuya, Hiroyasu Ozaki: Solenoid-operated valve for fuel cells. Keihin Corporation, Lahive & Cockfield, Anthony A Laurentano Esq, October 2, 2007: US07275732 (8 worldwide citation)

A valve housing has a bottomed hollow cylindrical main body and a boss projecting from and smaller in diameter than the main body. The main body has a tapered surface circumferentially along a joint where a side wall and a bottom wall of the main body are joined to each other. A plurality of inlet p ...


6
Sachio Hasushita, Hiroyasu Ozaki: Eyepiece optical system for a single lens reflex camera. Asahi Kogaku Kogyo Kabushiki Kaisha, Greenblum & Bernstein, July 17, 2001: US06263168 (8 worldwide citation)

An eyepiece optical system, which is used in a single lens reflex camera having a penta mirror, includes a negative first single lens element, a positive second single lens element, and a negative third single lens element, in this order from the penta mirror; wherein the second single lens element ...


7
Hiroyasu Ozaki: Telephoto zoom lens. Asahi Kogaku Kogyo Kabushiki Kaisha, Greenblum & Bernstein, April 18, 2000: US06052235 (8 worldwide citation)

A telephoto zoom lens includes a first positive lens group, a second negative lens group, a third positive lens group and a fourth lens group. A resultant refractive power of the third and fourth lens groups are moved from an image side to an object side upon zooming from a short focal length extrem ...


8
Hiroyasu Ozaki, Takayuki Ito: Step zoom lens. Asahi Kogaku Kogyo Kabushiki Kaisha, Greenblum & Bernstein, July 31, 2001: US06268964 (8 worldwide citation)

A step zoom lens includes a first movable lens group of negative power, a diaphragm which is immovable during zooming, and a second lens group of positive power. A fundamental zooming path along which the first lens group is moved to vary a focal length without causing an image shift is defined so t ...


9
Kouji Sonoda, Masakazu Murai, Kouetsu Hikichi, Hideki Sasaki, Yoshio Saito, Koji Katano, Kazunori Fukuma, Hiroyasu Ozaki, Kouji Miyano, Katsumi Sahoda: Solenoid valve for fuel cell. Keihin Corporation, Lahive & Cockfield, Anthony A Laurentano Esq, October 28, 2008: US07441560 (7 worldwide citation)

A diaphragm is clamped between a solenoid unit disposed in a casing and a second valve body in which hydrogen is introduced. A filter comprising a bottomed cylindrical mesh member is mounted in a first passage defined in the first valve body. A restriction having an orifice for restricting the flow ...


10
Hiroyasu Ozaki, Takayuki Ito: Zoom lens. Asahi Kogaku Kogyo Kabushiki Kaisha, Greenblum & Bernstein, June 8, 1999: US05910860 (7 worldwide citation)

A zoom lens includes a first movable lens group having negative power and a second movable lens group having positive power, and an immovable diaphragm provided between the first and second lens groups so as not to move during the zooming operation. The zoom lens satisfies (1) 0.450), and D.sub.w re ...