Fujinon Corporation

Fuji Photo Optical Co., Ltd.

Johns Hopkins University

Koichi Nagata

Takao Ozaki

Yuji Nishijima

Eduardo Marban

Hidenori Takahashi

Satoru Nemoto

Motohiko Horio

Toshihisa Ishijima

J Kevin Donahue

Katsumi Saito

John H Lawrence

Mokuyoo Nakano

A lens device includes: a lens barrel body having holes; guide bars supported by the lens barrel body and one ends of the guide bars are inserted in the holes; lens holding frames supported so as to be movable along the guide bars and are engaged with the guide bars; and pressing members that press the one ends of the guide bars in a direction perpendicular to the guide bars and are inserted in the holes. The pressing members have a falling-off prevention engagement protrusion engaged with the lens barrel body.

Lens device

A lens device is provided and includes: a lens barrel body; a lens frame swingably attached to the lens barrel body; and a swing mechanism being adapted to swing the lens frame so that alignment of an optical axis of the lens device can be effected, the swing mechanism including: an elastic unit interposed between the lens barrel body and the lens frame, the elastic unit biasing the lens barrel body and the lens frame in directions away from each other or in directions nearing to each other; and an advancing and retracting unit disposed at three points in a circumferential direction defined by the lens barrel body and the lens frame, the advancing and retracting unit advancing or retracting the lens frame relative to the lens barrel body against a bias force of the elastic unit to swing the lens frame.

A telescopic system is provided and has a digital compass and a gimbal mechanism. The gimbal mechanism is formed of first and second gimbal suspension members and a base table side supporting member. The digital compass is held placed on the gimbal mechanism. The first gimbal suspension member has two crossing arm portions and is suspended on the base table side supporting member rotatably on the first rotary shafts. The second gimbal suspension member is suspended on the first gimbal suspension member rotatably on the second rotary shafts. In this arrangement, the digital compass can be always kept horizontal even when the gimbal mechanism is tilted.

Telescopic system with digital compass

A motor drive circuit is provided and includes: a PWM wave generation circuit for generating a PWM (pulse-width-modulated) wave having a high frequency, whose pulse width has been modulated, in response to a rotational frequency control signal used for driving a motor; a switching element (FET) that receives an input of a PWM wave output from the PWM wave generation circuit and performs switching operation; and a current resonance circuit including an inductance and a capacitor. Current resonance is induced in response to power of a battery cell imparted by means of operation of the switching element. A value falling within the range of 60 to 90 KHz, which is 1.1 to 1.7 times as large as a switching frequency 54 KHz of the switching element, may be selected and set for the resonance frequency.

Motor drive circuit

The present provides methods and compositions that enable effective delivery of nucleic acids to desired cells, including to a solid organ such as a mammalian heart. The methods and compositions enable effective gene transfer and subsequent expression to a majority of cells throughout a solid organ such as the heart. Methods and compositions of the invention preferably provide enhanced vascular permeability that enables increased gene transfer to targeted cells, but without significant degradation or injury to endothelial cell layers.

Methods and compositions for nucleic acid delivery

Binocular casing

In the laser range finder, a sending portion that emits laser light to a target and a receiving portion that receives the laser light reflected by the target are supported on a gimbals together with erecting prisms of a binocular optical system, and their attitudes are controlled so as to be secured to an inertial system. This eliminates influence of a shake, and allows accurate aiming at a faraway target and measurement of a distance thereto with high accuracy.

Growing community of inventors

Saitama, Japan

Koichi Nagata