Hirofumi Ohtani

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical fingerprint authentication device
- Patent number 11,507,649
- Issue date Nov 22, 2022
- Merck Patent GmbH
- Kazuyoshi Omata
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Optical fingerprint authentication device
- Patent number 10,853,465
- Issue date Dec 1, 2020
- Merck Patent GmbH
- Kazuyoshi Omata
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method for producing organic electroluminescent element
- Patent number 9,929,379
- Issue date Mar 27, 2018
- Konica Minolta, Inc.
- Yoriko Nakayama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Silver halide photographic material having improved keeping quality
- Patent number 5,541,052
- Issue date Jul 30, 1996
- Konica Corporation
- Hiroshi Okusa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Silver halide emulsion and process for its preparation
- Patent number 5,523,202
- Issue date Jun 4, 1996
- Konica Corporation
- Hirofumi Ohtani
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of manufacturing a silver halide emulsion
- Patent number 5,518,874
- Issue date May 21, 1996
- Konica Corporation
- Yoshiro Ito
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
High-speed halide photographic light-sensitive material
- Patent number 5,362,619
- Issue date Nov 8, 1994
- Konica Corporation
- Kouji Tashiro
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Ultrafine gold and/or silver chalcogenide and production thereof
- Patent number 5,362,470
- Issue date Nov 8, 1994
- Konica Corporation
- Haruhiko Masutomi
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for preparing a silver halide emulsion
- Patent number 5,358,841
- Issue date Oct 25, 1994
- Konica Corporation
- Hirofumi Ohtani
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photosensitive silver halide photographic material
- Patent number 5,340,710
- Issue date Aug 23, 1994
- Konica Corporation
- Yukio Ohya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Apparatus for production of sparingly water-soluble salt crystal gr...
- Patent number 5,334,359
- Issue date Aug 2, 1994
- Konica Corporation
- Haruhiko Masutomi
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Color photographic material
- Patent number 5,200,308
- Issue date Apr 6, 1993
- Konica Corporation
- Hirofumi Ohtani
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Silver halide photographic material
- Patent number 5,041,366
- Issue date Aug 20, 1991
- Konica Corporation
- Satomi Asano
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Silver halide emulsions with silver halide grain groups of differen...
- Patent number 5,039,601
- Issue date Aug 13, 1991
- Konica Corporation
- Yukio Ohya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Silver halide photographic material
- Patent number 4,996,140
- Issue date Feb 26, 1991
- Konica Corporation
- Tomoyuki Nakayama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Dye sensitized light-sensitive core/shell silver halide photographi...
- Patent number 4,704,351
- Issue date Nov 3, 1987
- Konishiroku Photo Industry Co., Ltd.
- Hideki Takiguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Dye-sensitized light-sensitive core/shell silver halide photographi...
- Patent number 4,701,405
- Issue date Oct 20, 1987
- Konishiroku Photo Industry Co., Ltd.
- Hideki Takiguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL FINGERPRINT AUTHENTICATION DEVICE
- Publication number 20210011987
- Publication date Jan 14, 2021
- Merck Patent GmbH
- Kazuyoshi OMATA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
OPTICAL FINGERPRINT AUTHENTICATION DEVICE
- Publication number 20180357402
- Publication date Dec 13, 2018
- Konica Minolta, Inc.
- Kazuyoshi OMATA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
METHOD FOR PRODUCING ORGANIC ELECTROLUMINESCENT ELEMENT
- Publication number 20160093836
- Publication date Mar 31, 2016
- Yoriko NAKAYAMA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Digital still camera and manufacturing method thereof
- Publication number 20040085598
- Publication date May 6, 2004
- Konica Corporation
- Noriyuki Kokeguchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Hirofumi Ohtani

Person

Patents Grantslast 30 patents

Optical fingerprint authentication device

Optical fingerprint authentication device

Method for producing organic electroluminescent element

Silver halide photographic material having improved keeping quality

Silver halide emulsion and process for its preparation

Method of manufacturing a silver halide emulsion

High-speed halide photographic light-sensitive material

Ultrafine gold and/or silver chalcogenide and production thereof

Method for preparing a silver halide emulsion

Photosensitive silver halide photographic material

Apparatus for production of sparingly water-soluble salt crystal gr...

Color photographic material

Silver halide photographic material

Silver halide emulsions with silver halide grain groups of differen...

Silver halide photographic material

Dye sensitized light-sensitive core/shell silver halide photographi...

Dye-sensitized light-sensitive core/shell silver halide photographi...

Patents Applicationslast 30 patents

OPTICAL FINGERPRINT AUTHENTICATION DEVICE

OPTICAL FINGERPRINT AUTHENTICATION DEVICE

METHOD FOR PRODUCING ORGANIC ELECTROLUMINESCENT ELEMENT

Digital still camera and manufacturing method thereof