Koichi Hatta

Person

Yamatokoriyama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Password system utilizing two password types, the first being chang...
- Patent number 5,115,508
- Issue date May 19, 1992
- Sharp Kabushiki Kaisha
- Koichi Hatta
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Display system for a compact electronic apparatus
- Patent number 4,864,530
- Issue date Sep 5, 1989
- Sharp Kabushiki Kaisha
- Koichi Hatta
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Programmable calculator with external memory module and protection...
- Patent number 4,796,215
- Issue date Jan 3, 1989
- Sharp Kabushiki Kaisha
- Koichi Hatta
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Text compiling device
- Patent number 4,780,825
- Issue date Oct 25, 1988
- Sharp Kabushiki Kaisha
- Koichi Hatta
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Calculator or pocket computer with selectable operational sequence
- Patent number 4,695,983
- Issue date Sep 22, 1987
- Sharp Kabushiki Kaisha
- Koichi Oda
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Graph-drawing machine
- Patent number 4,609,918
- Issue date Sep 2, 1986
- Sharp Kabushiki Kaisha
- Yasuhiro Nakanishi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Multi-alarm timepiece with simplified operating means
- Patent number 4,589,779
- Issue date May 20, 1986
- Sharp Kabushiki Kaisha
- Koichi Hatta
- G04 - HOROLOGY
Information Patent Grant
Check calculator
- Patent number 4,569,029
- Issue date Feb 4, 1986
- Sharp Kabushiki Kaisha
- Koichi Hatta
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Shopping calculator with comparison feature
- Patent number 4,528,638
- Issue date Jul 9, 1985
- Sharp Kabushiki Kaisha
- Koichi Hatta
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Electronic learning aid
- Patent number 4,340,375
- Issue date Jul 20, 1982
- Sharp Kabushiki Kaisha
- Takashi Sakaue
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Koichi Hatta

Person

Patents Grantslast 30 patents

Password system utilizing two password types, the first being chang...

Display system for a compact electronic apparatus

Programmable calculator with external memory module and protection...

Text compiling device

Calculator or pocket computer with selectable operational sequence

Graph-drawing machine

Multi-alarm timepiece with simplified operating means

Check calculator

Shopping calculator with comparison feature

Electronic learning aid