LexDanaLexDanabeta
Inventor

Hiroshi Hayami

Inventor
Tokyo, JP

Overview

2→
Patents
1989–2006
Patent span
Human necessities
Primary field (CPC A)

Patents· 2 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

A23Bprimary
A23BPreservation of foods, foodstuffs or non-alcoholic beverages33%
B65BMachines, apparatus or devices for, or methods of, packaging articles or materials33%
H04LTransmission of digital information, e.g. telegraphic communication33%
PatentTitleYear
7,110,548'Cryptographic communication method, encryption algorithm shared control method, encryption algorithm conversion method and network communication system'20064,874,580'Pressure-controlling method'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989Patents assigned to HOUSE FOOD INDUSTRIAL CO (1)· patent assignee history
1989Based in Nara, JP· patent location history
2006Patents assigned to HATACHI KEIYO ENGINEERING CO L (1)· patent assignee history
2006Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HATACHI KEIYO ENGINEERING CO L12006
HOUSE FOOD INDUSTRIAL CO11989
Locations
LocationPatentsSpan
Tokyo, JP12006
Nara, JP11989